Last we heard from Viliv, one of the OGs of the MID and UMPC world, it was throwing its hat in the tablet arena with a pair of Android slates and a Wintel slab at CES. Now, rumor has it, the company is prepping to close up shop and make a graceful exit from a market segment it helped pioneer. This is according to sources talking to UMPC Portal, but there have been other clues. The manufacturer was conspicuously absent