Looks like there’s a serious outage going on for Sidekick users. Starting in the last few days, data services have been broken off and even address books have been inaccessible. Apparently the problem is with Danger and Microsoft, not with T-Mobile. My G1 is on T-Mo and I’ve had no data troubles — and it’s Microsoft that’s scrambling to fix the issue. Around the clock, even!

Apparently they’ve gotten many “critical applications” back online, which seems to include everything you’d want to use: “address book and calendar, social media applications, IM, web browsing, media player and camera.” What else can a phone do?!

At any rate, they say they’ll have everything back to 100% by Thursday. anybody out there still having issues?