[bobmoretti]

I've been using this ROM on my NS4G for about a month:

http://forum.xda-developers.com/showthread.php?t=1364221

In my experience, the stability and performance of various peripherals like GPS and the WiMax radio are about as good as the stock 2.3 ROM. I haven't even noticed a change in battery drain...

[JoelSutherland]

I'm running the same ROM on a NS4G also for about a month. It feels like a new phone and has been awesome in every way.