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SlideIT is currently in its fourth iteration, and with that comes the introduction of skins. Scoff as you might, customization and aesthetic appeal are important to lots of people out there, so I've got to tip my hat to the SlideIT developers for making that so easy to do.

How does SlideIT function as a line-tracing keyboard, though? On its own, alright. If there's one thing SlideIT has going for it, it's that it's fast. I'm not just talking a little quick here and there. It feels like as soon as you're even thinking about being done with a word, SlideIT is ready to toss it out there. It's kind of uncanny and hard to describe what makes it feel so instant, but it does.

As far as word prediction goes, this is where I think SlideIT has room to improve (at least when compared to Swype). Word that are a couple of letters long (three to five), no problem. SlideIT has no problems spelling "it" or "that" or "looks," but it felt like once I got past words of five letters, accuracy went out the window. No, I meant to spell "fantastic." Was my trace so far off that it really deserves "??" as a prediction?

Other than that, there's not much to say. SlideIT is a keyboard, and a keyboard's for typing things out. Long-pressing works fine, and auto-spacing is all customizable via the settings menu. There's also a whole slew of language packs that can be downloaded from the Market, which is a good alternative to having to pick between all languages supported or just English and Spanish.

Overall, it feels like SlideIT is on the right track. There's a lot of good ideas there (ones I wouldn't mind seeing Swype eventually adopt), but until the prediction is better, it's not something I'd use normally. There's also the price to consider. SlideIT has a 15-day free trial, but after that, you're laying down $6.40 for the whole package. Again, language packs and skins are free.

We've got download links after the break.