I used it recently to spot check addresses that I geocoded for a POI database for my GPS unit. It allowed me to make corrections to the locations graphically. Prior to doing this I thought "what would I ever use THAT for?!?".

Setting up a hotspot for an ad-hoc connection seems like overkill. Why not just establish a peer-to-peer wireless network? Once the network is established the steps necessary for sharing should be identical.

Disabling POP3 for IMAP really does nothing for security. The original post does not indicate so, but a later comment indicated that the IMAP connection would require the use of SSL. If I'm not mistaken I believe that you can do POP3 of SSL as well. However, the real security concern is that the user can download…