Let the hive mind of Engadget get that for you.
"I need help! I want a small pocket camcorder but I'm not sure which one to get. I don't want to fall into the hype of the Flip because I worry two hours won't be enough. What should I be looking for when considering a small camcorder and where can I get a good quality one with expandable memory? Thanks!"
Your last statement doesn't make sense. HD-DVD guys harp on BD being this completely perplexed unstable format, really, it's just news as HD51 like you said, but disregard the lack of stability, a firmware update could resolve the issue with existing players.