is 850 mhz band possible?

[witchdoctor]

does anyone know, or has anyone tried, to enable the wallaby for use on 850 band? yes, it's because of cingular.

could this be accomplished with a different radio stack (even from another device)?

[heliosfa]

The band that a phone works on is limitted by its hardware, not its firmware. IF the phone you have doesn't currently work on 850mhz, then there will be no way to get it to work.