Which app have been updated to look great on the new iPad's impressive 2048x1536 Retina display? Not very many yet by our count, but we expect the floodgates to open when Apple's third generation tablet actually hits the shelves next Friday, and for a steady stream to follow thereafter.
As Marc Edwards of Bjango wrote for us before, it might take a while for all our favorite apps to update, especially ones that use a lot of custom graphics for their user interfaces, and especially ones that didn't prepare for @2x Retina graphics by building all their assets in a scalable format to begin with.
Apple has already updated a ton of their apps already, including Pages, Keynote, Numbers, GarageBand, iMovie, iWork, Apple Remote, Find My Friends, etc. but they knew this was coming for a while now.
Marc's keeping track of Retina-ready apps, and sharing screen shots of apps-in-progress over on Twitter @RetinaiPadApps and we're also going to maintain a count in our iPad Apps & Games Forums as well.
So head over there and join in our official iMore iPad Retina apps watch-list and as soon as you find your favorite apps have updated for Retina, let us know!