Luca got the scoop on this one this morning. (Or is it afternoon for him?) Fring now works with SIP services like Gizmo Project, VoipCheap, VoipStunt and Free World DialUp. It’s still in beta mode, but I’m going to download it today and see what’s what (handy to do on my Nokia N80i).

Fring is a free application for your mobile phone that lets you talk with fring, Skype, GoogleTalk, MSN and now SIP-based applications over VoIP, GSM, WiFi and PSTN networks.

I’ve used it most with my Skype buddy list. On my phone, I can see who’s available on Skype and who’s not, etc.

At present, fring is only available on certain Nokia handsets (Symbian 8 - Series 60 and N Series phones). See a visual list of compatible handsets on their web site (look under “Minimum Requirements”).