I noticed a prerelease Tour of GNOME 2.12 whilst looking for info on GNOME's new about me program.
I was interested, as it seems to be an extension of the Login picture tool in 2.10, and I've had plans to integrate this with gaim for some time.
What caught my eye however, was this sentence:
System stored user information (GECOS) will also be updated if you have permission, allowing you to easily change your default details in legacy UNIX applications.
Is this equating legacy UNIX applications with anything which uses the GECOS field, or, anything which isn't GNOME? Either way, it doesn't sound too good.