It's nice having the added encryption on the sensitive data itself though. My PDAs are set to go back to a PIN login after 30 minutes of no usage, if someone where to pick it up within that 30 minute window then my PIN is bypassed. Information like CC's and SS numbers and Insurance info and all that... I just feel more comfortable with the added security.
There are also less sensitive sections of my eWallet that I leave un-encrypted, business cards, software serial numbers, auto records and such, just for the convenience of getting to the data faster.