The only thing I'm not digging about this is that it's going to be released in 4 parts, and each one will cost $2.99.
Thor & Loki: Blood Brothers, an all-new four-episode series debuting on iTunes, Xbox LIVE, and PlayStation®Network on Monday, March 28th. Further episodes debut weekly on Wednesdays beginning April 6th, with each high-definition episode priced at $2.99 (standard definition is also available at $1.99/episode).
I'd rather just have a dvd release of the full movie since it's going to cost about the same anyway. Here's the referencing article.