The whole WP7 thing is really starting to become laughable. Between the Jan/Feb/Mar/Apr/May (which month is it again?) update fiasco and stuff like this I am really starting to regret getting a Windows Mobile device. WP7 is so limited even Microsoft's own development teams can't get the apps they want to write up on the platform and are targeting other platforms instead.
In the meantime, the WP7 team has continued to ignore the pleas from from their developers and customers to fracture Mango into smaller updates and announced "status-quo" for Mango at MIX. So much for the original promise of updates coming "early and often" to bring feature parity with the competition.
Oh, cool app though! Too bad we won't see it on WP7 until 2012 (if ever).