portable development -- python for the pda?

[Clark C. Evans]

Hello.  I'm going to be doing quite a bit of travel in January and 
I'd like to continue to program on-the-road.  So, I'm in the market 
to buy a PDA with a fullsize (foldable) keyboard.  Does anyone have 
this sort of setup working?  I typically use python and vim, with
postgresql.   I don't strictly need postgresql, but having python
run on the PDA would be nice.  Any suggestions?

Cheers!

Clark