But doesn't use Skype! It now, on the latest release, allows free calling Truphone to Truphone, and the rates just came down, I think its cheaper than Skype's $.021/min. Excellent since momma has an iPhone too! Also, when I call home with Truphone, my phone number shows on caller id. It also goes right to my voicemail when I call my own number, without having to use * and and PIN.

For Skype, use fring. fring doesn't connect nearly as well as Truphone, at least for me.

Other Apps:

Delivery Status - track FedEx, UPS, USPS (if you can call it tracking), Amazon, etc.

Flight Tracker

Easy Wi-Fi

Brothers in Arms

Loopt

Lightsaber

iBeer

Midnight Bowling