I don't know of any off hand, it's a proprietary O/S so there's not a ton of 3rd party support, but if you haven't googled it yet, that's what I would suggest.
I say this to all the Blackberry customers that call in for tech support that, well, the Blackberry's main purpose is email and EVERYTHING else is an afterthought, even voice and text, so yeah, if you want a do-everything phone, I suggest something that runs on Palm or Windows Mobile.