This update to the Android Market could be related to the upcoming Android 2.3 software release. A video of the Gingerbread O.S. shows this change in the Market looking very similar to what can be seen on the video. If your Froyo device was the recipient of the changes and update in the Android Market, let us know by writing a few words in the comments box below, and let us know what changes you can detect.
The new third tab on the revised Android Market listing reads "similar" on the Motorola DROID X (L), and "related" on the HTC EVO 4G (R)