Taken from this LiveJournal community, which reportedly pulled it off the official No Doubt website (which, at the time of posting, is currently down):
the band reconvened recently in an LA studio to write new material for the next no doubt album. "we're just getting back in the zone again... it's been a while since we've played together," explained tony. "it was incredibly fun & exciting. we're going to jam a few more times over the next few months & record everything & then see what rises to the top from these ideas." check back here for more recording updates and photos from the studio.
- nodoubt.com april 5th, 2006.
If this is correct info, I'm stoked! Can't wait to see what No Doubt has up its sleeves now!