I've been considering getting a Garmin bike computer to replace my "dumb" bike computer, since the training and navigation options would be something I'd use.

But one feature I love with my current bike computer is that you can have a different profile for each bike, and it keeps a running odometer for each.

I haven't seen this explicitly listed in any of the spec sheets or even the user manuals, but I'm hoping that Garmin computers offer this feature.