Man, I wish. Long ago, we tried fiddling things like the ttgo.bif file, but tweaks made there get overwritten by "reality" as soon as the unit is operated, so the "correct" data is always being downloaded by Home when it runs.
Any attempts to quickly fiddle information in the firmware file loaded to the unit blows up the CRC - it takes quite a bit of expertise to work around that, and on the whole, we don't even discuss hacking TT firmware here (for other reasons!) That's what it would really take, too -- a hack to the firmware being loaded to the unit such that it misreports its firmware version when Home is fired up and makes its inquiries from the unit.