Quick Roaming App or Script?

[digiblur]

Does anyone have a quick shortcut to force a phone to Roaming Only instead of having to dig through the menus.

I get crappy signal at home but Alltel has a tower across the highway from our neighborhood. I don't talk on the phone much at home but the rare times I do, it would be awesome if I didn't have to run outside.

I'm looking for something where I can just mash a shortcut on my screen using one of the various launcher apps out there that will toggle the phone from roaming only to automatic and back and forth.

Thanks.