There’s not much to your average prototype Windows 7 tablet — just a netbook running the vanilla OS with a touchscreen instead of keyboard — but if you’ve been wondering why you might care to buy one, just get a load of this Macallan UI. Developed by a third-party firm named UI Centric specifically for Windows tablet devices, it features a clean, finger-friendly interface capable of Adobe Flash and Microsoft Silverlight, and uses the crowd-pleasing page flip gesture for multitasking functionality. Perhaps most importantly, however, UI Centric claims it will actually appear on a real slate — come Q3 2010, a “major manufacturer” will debut the first Macallan-topped device. We’re curious to see how it (and a bottle of fine scotch) will stack up against September’s ExoPC. Video after the break.