The brood over at PreCentral have managed to acquire a leaked copy of HP’s webOS 3.0 beta 1 software development kit (SDK). Why is this a good thing? Because contained within said SDK rests a TouchPad, webOS 3.0 emulator, of course. While emulators only provide 50% of the TouchPad story — the other half being hardware — it is useful to get a high-level overview of what user interface will look like. If you want to whet your appetite for this summers TouchPad release, hit the jump. There’s an eighteen minute video overview awaiting your scrutiny. Be sure to click through the read link as well for a host of screen grabs.