It has the potential to be huge, however no VC firm will touch it since it also has the potential to be sued out of existence. I doubt it will have the resources to build things up enough where it can scale up and get a mainstream marketshare.
Android seems to be the only real alternative to Apple's appstore madness. I'll definitely be supporting that platform in the future. Getting an iPhone 3g last year was a really boneheaded move.