How bad could this thing be?

I see these things from time to time on 9to5Toys and wonder how the heck they can make any type of tablet with a 7-inch screen $90.

The one review it does get on Amazon sums it up pretty well:

While the unit does work. It’s slow, and sometimes the touchscreen is unresponsive to touch commands. I basically have to press really hard on the screen for it to take commands.

It does a poor job streaming video from youtube.
My Samsung Captivate, cell phone is faster than this unit.

Overall:

Pros: Works, great for web surfing low media content sites, great to use as a picture frame,

Cons: Slow, Touch screen not accurate/responsive.

So, it would appear that you are pretty much buying a photoframe with a battery and a resistive touch screen (enclosed stylus).  Still, for $90…