I'm not sure but I think I remember someone from Funimation mentioning on ANNCast that they were working to support devices later on so apps are coming sooner rather than later probably. The 2 that will probably be supported immediately will be iOS and Android, followed by Roku, Boxee and anything else that might be out there. PS3 and Xbox 360 seem to be hard to get content on, since Crunchyroll seems to have been trying to get their content on there for a long time, but with the recent Xbox 360 update things might change for that console. Personally I'm hoping for an Android app, I have an Android phone and I'm planning on getting a Logitech Revue with Google TV then I'll sign up for the service but until then I'll just save my money for DVD/BDs.
Here's a link to the podcast I heard the news on, but like I said I don't really remember what they said exactly so you can listen for yourself.