[Edit] I misread RTM as RT. SketchUp does run on Windows 8 x86 (32 bit, 64 bit), but not on Windows RT / ARM / WOA.
And thus SketchUp does run on the Surface Pro (x86) but on the classic desktop.
Windows 8 RT means supporting a different architecture (ARM). SketchUp only supports x86 (and dropped the PowerPC architecture some years ago). I fear it's a decision of marketshare, so it may take some time until ARM devices with Windows are common. If Trimble decides to rewrite the whole user interface for Metro, than it will run on both x86 and ARM.
Most of the opensource ecosystem has toolchains to support all sorts of architectures, so it could be done, but I don't know in what Trimble will invest. Who knows, maybe they rather advance the web version.
(As a critical sidenote: That's the downside of the closed core/open extensions concept. It depends on Google/Trimble/SketchUp to port the core application, and thus our extensions can only run where SketchUp has been ported to. SketchUp is not a platform although they often claim that.)
Last edited by Aerilius
on Fri Aug 03, 2012 9:10 am, edited 2 times in total.