It's a huge missed opportunity to have a bigger touchscreen on the back (when closed), so then you can use it like an actual smartphone, and when you need to use the keyboard, you could open the clamshell. This would have sold it to me personally.
That's my biggest issue with the Gemini (and this new Cosmo), it's just awkward to open it up for quick usage. It's especially awkward for any vertical usage, as the keyboard loses functionality and there is no ergonomics.
A smartphone is a quicker device for checking anything and the keyboard doesn't get in your way, which is probably why nobody is producing phones with keyboards these days. Even the last phones with them had slider keyboards that were hidden very well.
Having essentially dual screens could have made these two devices appeal to so many more consumers, it would have justified the very hefty price that the Cosmo goes for (even with a damn 31% off sale).
When you're not using the keyboard, it's a hindrance. It's what makes the Gemini PDA a really niche item. Giving the user a way to ignore it when not in use would have been great, it's another reason why everyone uses detachable bluetooth keyboards.
Also sore to see a lack of any pointing devices. A ThinkPad style trackpoint would have been a good addition, especially for the Linux users who aren't glued to a shell and terminal emulator unlike me.
I hope the third revision (if it comes around!) does my suggestions. A bit disappointed with the Cosmo Communicator, as nobody with a Gemini (the main audience) has a reason outside of backlighting to purchase it; however, it's a great step in the right direction, since these are the only people making smartphones with full proper keyboards!