Hot off the recent update which adds in a new App Backup App to the Transformer line from ASUS, they've just pulled back the recent update due to a bug in the app which prevented DRM based apps from successfully backing up and they have today re-released another firmware update to fix this issue.
I must again commend ASUS on their extremely speedy updates for the Transformer tablet and this is something that other manufacturers should strive to follow and clearly ASUS is at the top when it comes to firmware updates. Bravo! You should be getting the update soon and if not, check at the settings > about tablet > check updates.
Thanks Jim for the heads up!