ASUS's R50A UMPC has been sort of lost in the company's flood of Eee PCs, and maybe for good reason -- the crew at UMPC Portal just reviewed the $2,000 handheld and came away unimpressed. Although the software package overall was described as "atrocious" and the lack of a keyboard was annoying, the biggest problems were all essentially related to running Vista on the 1.33GHz Atom Z520 CPU with 1GB RAM -- you can delete bloatware and use a bigger stylus, but you can't fix "pretty bad" performance on the lowest possible graphics settings. Ruh roh: Sony's upcoming VAIO P supposedly has a similar 1.33GHz Intel chip in it and runs Vista. Here's hoping Sony's got something a little more impressive up its sleeve for us than what ASUS managed to put together here -- otherwise the full R50A review at the read link might be discouragingly prophetic.