I haven't made the switch to GVoice yet. I loathe the thought of changing my phone number after going through that about a year ago when we dumped our land line. Was going to wait a bit longer in hopes porting of numbers (with full GVoice functionality) will become possible. Sending the text to GVoice however, does what I wanted: get the message to my Google account.
Thanks for the tip on getting a map generated. That's cool and lends it self to a "Here I am" SMS profile I'm going to write. ;-)