You should use it only for the OS and for programs. 256GB should be enough.

I'll check it out. I know it is the right size. I wonder how the IQ compares with M43?

I'd recommend an SSD for the C drive.

Are you satisfied with the IQ? The other alternatives don't seem to satisfy my size criterion!

Thanks for all the responses! I hadn't considered the LX100 because I felt I wanted interchangeable lenses but the Leica lens with f1.7 is attractive. Comparing sizes on Camera Size shows the LX100 to be quite a lot larger than the GM5. I wish we had a store where I could actually look at the various cameras. Imaging Resource has a page where a variety of cameras can be compared. https://www.dpreview.com/reviews/image-comparison/fullscreen?attr18=daylight&attr13_0=panasonic_dmcgm5&attr13_1=panasonic_dmclx100&attr15_0=jpeg&attr15_1=jpeg&attr16_0=6400&attr16_1=6400&attr171_1=on&normalization=full&widget=167&x=0.11778447315562816&y=-1.059080887372856 The images shown appear pretty similar and are way better than my S90 (actually they have only the S120 which is probably better than the S90). Portability is an issue even for travel in cities where it would be convenient to put the camera in a pocket.

I have made 11"x14" from the S90 which are pretty decent from a sharpness viewpoint. I would like to be able to make up to 16"x20" prints. It would probably make sense to try a larger print from my S90 files! I think the major advantage of the M43 cameras is the low light capability. The S90 sensor is 1/1.7.

Some time ago I started a post http://www.uglyhedgehog.com/t-283566-1.html which is related to this topic. I asked about a new travel camera for long distance treks (10-12 days) in the Alps. In the interim we trekked the Alta Via trail in the Italian Dolomites and used the same Canon S90 that we took on our previous two Tour du Mont Blanc treks. That camera has the great advantage of being small and light but was released in 2009 and has a small sensor. I had initially thought that a Sony RX100 might make a suitable replacement but have now decided that the Micro Four Thirds line would be more appropriate.
I have pretty much narrowed my search down to the Panasonic GM5 and the Olympus EM10 both with kit lenses initially.
Reviews I have read seem to indicate that the EM10 may be slightly superior to the GM5 but the GM5 is considerably smaller. I need a camera that will be small enough to fit into a small case that can be attached to my chest strap on my backpack. The current S90 definitely fits this criterion and it seems that the GM5 will also.
My question is really if the EM10 can be carried in a similar manner (i.e. is there a case that it will fit that is small enough to be carried on a chest strap)? It seems that the EM10 will not fit into a pants pocket but probably the GM5 will?
I am probably fixating too much on the slight superiority (if it exists) of the EM10 but I don't change cameras often so I want to make the best choice. I must say that the results from the S90 are not bad but I'm probably experiencing a case of GAS! I do have a Nikon D7100 that I use for situations that don't require serious portability.
Any experience Hoggers can send my way would be appreciated. I'm especially interested in viewpoints from the perspective of a hiking camera. The weight difference is not something I worry about but the additional bulk may be an issue.
Thanks in advance for your help.
Dave

REI has a National Park app available for both Android and IOS. They include Smoky Mountain National Park and have trail information complete with maps with contours and ascent and descent profiles. I would recommend visiting the Sugarlands Visitor Center where there are knowledgeable park rangers and volunteers who can advise you and provide maps. Also there is a comprehensive bookstore where you can buy detailed books with plenty of hiking information. I can recommend "Hiking Trails of the Smokies" and "Waterfalls of the Smokies"

Have a great trip. The Smokies are beautiful.

As a self-acknowledged spelling expert, one would hope you knew the difference between your and you're!

I think that the tiles are a different size when they are reconstructed after being split diagonally! Good riddle. :)

Crwiwy: my first eleven years were spent in Plymouth and I remember fondly Ivor Dewdney pasties!
To my great surprise and delight pasties are pretty common in Michigan. They were brought over by Cornish miners who settled in the Upper Peninsula of Michigan. After the mines dried up they moved south for the automotive jobs. Driving along highway 2 in the UP there are numerous signs advertising pasties.
Another item missing is clotted cream! A real artery clogger but delicious.

We use Nettalk which is a similar price to Magic Jack. They provide a modem which plugs into an Ethernet jack on the router. Works well with unlimited calls to US and Canada. Overseas is extra but very reasonable.
We also use Trac Phone which works for someone not using much 3g/4g. I found it necessary to turn off mobile when not in use because I was getting messages about new email and news updates which gobbled up my data allowance.

I lived in England until I was 11 and then moved to Canada, living there for over 30 years. A lot of these items were available in local grocery stores including my favorite, Marmite! My wife and kids always tease me about Marmite because to say the least they never acquired a taste for it!
After moving to the US in 1987 I had to buy my Marmite when visiting family in Canada. However, recently I found that World Market sells many of these items and more surprisingly our local Meijer store now has a UK section where they sell Digestive and Marmite. Another item Meijer stocks caused a lot of mirth for my grandson, it is Spotted Dick!
Regarding Yorkshire pudding, my grandchildren love a dish called Toad in the Hole which is simply Yorkshire pudding with sausages cooked together.

Yep! I remember delivering the Toronto Star for 30 cents a week and when the price went up to 35 cents half of my customers quit!

My wife and I have addressed this issue with a Canon S90 point and shoot. Of course this camera is long outdated but similar-sized cameras are available. It depends on your priorities re IQ and convenience. We have trekked in the Alps on 11 day trips and were able to carry the p&s on our clavicle strap for great accessibility. I started a thread on this whose link follows

http://www.uglyhedgehog.com/t-283566-1.html