It seems to be taking an age to come but finally we will be seeing it in the march XBLA Block Party (a bunch of games being released during march on XBLA). Its expected that it will be released for 1200 microsoft points but rumours are abound that it could potentially be 800 ms points but either way its a great bargain for such a great game. Here is a video which shows the very first level being done in what can only be described as record time. Thats enough sarcasm for now..
I can see you guys just wanting him to jump on the door at the beginning, i have a feeling they will have probably patched any glitches however.