Looking at Lips' original line-up of 40 tracks, there's a solid attempt at variety on display here. It's likely that almost everyone will find something they can sing. It's also likely that most people will only find two or three things they actually want to sing. The result is that Lips' success depends almost entirely on the quality and quantity of downloadable songs which appear after release. If they can get a couple of dozen songs out every Friday, with good variety and reasonable prices, and rapidly build up to (or surpass) SingStar's library, Lips will be a winning product. If not, they might as well not have bothered at all.