I tend to write very long emails on my Treo, and often waste time contorting my fingers to try and employ correct grammar, punctuation and spelling (not a very interesting OCD) rather than relying on shortcuts that every sane person on this earth has adopted by necessity. Sometimes I wish I could beam in my keyboard from home for a few minutes then beam it back, but I absolutely hate carrying alot of stuff, even when I'm going to be away for a few days (which is why disposable underwear makes alot of sense to me).

Elekson makes a full-size fabric keyboard for smartphones, PDAs and handheld computers using "Elektex Smart Fabric." The keyboard supports wired and bluetooth devices, runs for about 10 hours on 2 AAA batteries, rolls up into a compact size that can go in your purse, and is washable. It comes with a sack for storage and a stand for phones/PDAs. No information on the website regarding availability or price.