Thanks for the keycap info; that addresses the concerns I had had about them.
Regarding a portable Bluetooth keyboard, what layout do you anticipate using (40%,60%...)? I have given up on finding an ergonomic BT board and am instead using a generic folding board from Stowaway. It's scissor switches, but solid build quality and folds in half for pocketability. (Also, only costs $30 on eBay.) I use it only on the bus, though, so ergonomics isn't as huge an issue.
![](http://img.tapatalk.com/d/14/02/14/5ematyna.jpg)
(they have a four-part folding 5-row too, but it's harder to find.)