Difference between VLingo and the built in Voice functionality in Android? My wife is contemplating an Android phone, and loved the demo she saw of VLingo on a Blackberry.  I keep noting that this is all built in and free on Android.  I imagine since they are cross coding anyway, might as well offer it for Android at least (It IS offered for Android, as well as iPhone and Blackberry).

So a couple of things:
What are the differences between VLingo and the built in functionality?
Are there other alternatives?

I like the Google technology currently used, and am playing with VLingo on my Blackberry, and am not so impressed yet.  I am waiting to be wowed.
I tried VLingo for a while on my Evo and wasn't impressed.  It did not seem to offer any value to me above that provided by the built-in voice actions.  I uninstalled it after trying it for a couple of months.