Edward C. Baig had a review in USAToday.com for 15Jun05 of the new MusicGremlin Gremlin MG-100 that allows subscribers to download audio from MusicGremlin.com via WI-FI connections vice a tethered connection to a personal computer:

The unit has 8-GB of storage, 2-inch color LCD, has an FM receiver, and lists for $299. Song downloads are $0.99 or you can get an unlimited download plan for $15.  Music is protected via digital rights management (DRM), and will work with online sites like URGE and RHAPSODY, but not APPLE ITUNES. 

He rated it a 2.5 out of 4. With the major downside being a weak graphical user interface (GUI) and navigation.

No mention of podcasts in the article … it would make the Gremlin more compelling to me if were podcast-savvy.

Engadget also has a review.