JPY had the best WiFi and GPS I've experienced on the SGS. But I can live with JVP's modem until something better turns up. A couple more weeks on JVP and I'll be heading for a modded version - whatever is the rocket du jour.
I may have to give JVP modem a flash. My gps hasn't been great with either of the modems I've tried either.
I added the SIP support back into 2.3.4 and I am happy to report it works well with my Xnet VFX account.
Goodbye sipdroid. You are no longer required.