Saw that, we're doing it today.
Hopefully this last rev of Gaia slips through - we don't really use the UDID in Gaia, but it shows up in the code because we do subscriptions in other apps, and have a defunct library or two that used it. We just had an app approved, and I think this will only affect 20-40% of submissions right now. Fingers crossed.
Gaia did get rejected yesterday, and we resubmitted, but it was for a different reason. They changed the rules on using long app titles with keywords. Hopefully, they apply these rules to our competitors too!