So, any word on what they do?
Another option is to install Start8 from Stardock or similar, if it is the new interface stuff you don't like. I found Windows 8 quite likable with a proper start menu.
And also, why the hell do they still insist on having left and right button on the left and right side of the trackpad? It is horrible and erases the border between the two, unless the laptop manufacturer has made a dent in the surface or something. I must say I prefer the Apple solution to this - clicking with two fingers equals right click.
HP was one of those who were early adopters of these trackpads, which ended up with Gizmodo giving them the nickname "HP FrustraPad".
A lot of stuff is listed there. I think Cyanogen provides a pure Android experience, plus some handy extras that I find pure AOSP builds lacking. If you'd rather have Sense, you can find all sorts of supertweaked Sense ROMs on XDA. But heck, go ahead and try CyanogenMod and see if you like it. After rooting, taking full backup of your phone is trivial, so experimenting after that is not that much hassle.