Google Voice

Being the Android junkie that I am I thought I'd let you fellow gadget kids know that Google Voice is no longer invitation only.
I must say, I use it all the time and LOVE it. Free SMS, visual voice mail (the transcriptions are priceless), and free calling (lots of ifs ands and buts, works for me though :) ).

http://googlevoiceblog.blogspot.com/...-everyone.html

This is an extremely useful tool I've been using it since mid '09, it's become an invaluable resource for me.