I have pretty poor cell reception at my house. Is there a way (or an application) where I can schedule or order all calls to my 8800 to a different line? I had this for the Treo and it rocked.

Yep, GrandCentral.

Google and more info here in the Aftermarket Software section.

Cingular ...err...AT&T does this for me on all calls. After 3 rings it goes to my company voicemail phone #. It is forwarded there- this is not the ATT voicemail it is a seperate #. I think you can turn it on and off but I leave it on all the time.

oh and it is free

Yeah, that option should be part of your standard service. At least it is on a Verizon account, but I assume it is available on most services.