I don't know about the rest of you, but i've been searching forever for a stable app to run on my omnia I910 that I can use for making SIP/VOIP (free internet) calls. I've tried many apps.. FRINGE is a good one.. but has poor audio quality making you sound muffled. Sometimes it even shutsdown. I then tried Nimbuzz and it works great. I have a googlevoice account so i have my new free phone number. I then signed up with Gizmo for my free SIP number. Forwarded my Google Voice calls to Gizmo(which is part of the Nimbuzz app). So when someone calls my GV number my Nimbuzz app rings and I talk for free. I can also make free calls by loading GV on my browser and dialing from there. Im still searching for an app around this though so i dont have to use my browser to dial my calls.
get
www.nimbuzz.com here
for GV just go google for a Google Voice invite and wait... youll get your invite in the email within a week..
Enjoy your free phone calls.