Can I use a bluetooth keyboard with Android?

Is there a way to use my android device as a bluetooth USB dongle without rooting it?

When I'm driving with a headset active (Bluetooth or wired), I want my Android to read me any incoming text messages. Any references?

I have a Bluetooth speakerphone for my car (BlueAnt). It uses a phone's built in voice control. When I try to use it, it says that voice control is not supported by my phone (AT&T Samsung Captivate, Android 2.1). Is there a way I can get voice control (over Bluetooth) on my phone?

The only way I found to do it is by installing a 3rd party file explorer software. Isn't there a default app that does that? At least for media files?

Is there an app (because I don't see it as a feature) to limit the address book entries to a particular category when accessing via bluetooth? My car will only take 1000 phone numbers, but my address book on the phone is about 1400. My colleagues car will only take 500, and his list is 900 long. If there was a way to limit the list it would allow it to sync quicker and not miss vital people... Anyone seen …