I found out if you go into each category on the right side of the market main page there is a tablet section for each with some new apps. Be sure to check out the live wallpaper Jumpgate Free Live Wallpaper its pretty cool but makes my device almost unusable.
Also found a bug upon turning on my Xoom today I went into the market and noticed that on the homepage the featured tablet apps section was on repeat and wouldn't go back to normal.