Just like the VCs adored e-commerce start-ups during the dot-com boom, they've got a big, bad thing for mobile start-ups these days. Case in point is MobiTV, which just raised another $30-million from a group of investors that includes Hearst Corp. and Adobe Systems. So far, MobiTV has raised $125-million, and it's far from a slam dunk whether there's a huge demand among mobile device users to watch video on little screens. That said, the VCs seems to more than happy to finance mobile services and technology. It will be interesting to see how well Toronto-based Ambient Vector does in its pursuit of private equity. If anything, the company seems to be in the right place at the right time.