Heard that Mango on HD2 have massive battery drain bug. Is this already fixed?

This is my main bottleneck in purchasing an HD2 now.

p/s: Now having question, lets say I partitioned my microSD card and dual boot the HD2 with Android n WP7. Does the phone can still detect the files on other partition, eg, songs in my android partition detected in WP7, and vice versa.

Wow. Thats a bummer. Having to maintain 2 sets of library really makes dual booting not a viable choice for me now.

Been dying to try WP7, but the glaring limitations still held it back from being a powerhouse OS. Thats why I hope that HD2, via the dual boot scheme can somehow make things more feasible.

Just my 2c, and have to clarify, I'm not saying android is better etc2, every os have their own sets of advantages and weakness. And I'm not an android fag, heck I do love Symbian more

Still, who am I kidding, I'll still gonna buy this beast! (Have some sweet spot for old, but still powerful gadgets ha3)