Filed under: LaptopsMSI told us that a 6-cell version of its briskly-moving Wind was on the way. What it failed to mention, however, was the $50 premium that would be tacked on. The units including a 6-cell battery have been popping up in a few e-tailers here recently, with prices ranging from $559 to $599. According to an MSI representative, however, the official MSRP for the 6-cell units is $549.99 (versus $499.99 for the 3-cell edition). As you can tell, it seems that some places are taking the liberty of bundling in a little profit while demand is high. Worse still, users who ma