In May, Helio introduced the Ocean, the world's first dual slider phone (the number pad slides down vertically, the keyboard horizontally). The phone got great reviews, but in order to buy one, you have to sign up with Helio, which is still something of a niche network. If you're lusting after a dual slider, but are not sold on Helio, an Ocean competitor is on the way. Pantech will release the Duo later this month— it's just like the Ocean, but is slightly smaller and runs Windows Mobile.
The catch is that the Duo will only be AT&T compatible and available with a two-year contract (sound familiar?). In the mobile phone world, competition is a relative term.