Blackberry Apps?

[Gurtie]

I know there's a blackberry app store, I know there's a developers zone at http://us.blackberry.com/developers/ - anyone have any idea how much is now possible with a blackberry app and how painful/expensive they are to deliver?

And yes, I know no one uses blackberry. Aside from visitors to this one website it appears from the stats!

I guess recommendations for developers who can handle both iphone and blackberry would be pretty useful if anyone has any