The desktop app that we all use is on iPhone. It can now do VOIP calls over 3G as well. Unlimited US/Canada calls is just $2.95 a month!
Fring is a nice IM client that supports multiple IM services including GTalk, Yahoo, and Skype. It can do VOIP via Skype as well as with a SIP account from a third party provider.
An IM client that allows messaging with GTalk, MSN, Yahoo, and AIM users. Provides low cost Wi-Fi based domestic and International calling.
Bababoo knows when your mobile is
connected to the Internet to provide
low and free rates.
No internet? No problem.
Bababoo is smart enough to pass
your call to your carrier so your
call is placed no matter what.
iCall is available for Desktop and iPhones. They have both a pay as you go plan as well as monthly unlimited plan.
