I don't know if they have this any more, but the netbook Kensington neoprene pouch, is PERFECT for the T1, it fits horizontally, and you can do a easy double fold for it. To me, that is all I need. I can even clip the stylus on the inside Kensington label. $5. (Because the of the weight advantage, I never wanted to add excess weight to it.)
http://www.amazon.com/Kensington-Ess...9&sr=8-1-spell
I got this on AT&T wireless for about $5. from a deal they had.
No, it is not a case, but it is a perfect pouch.