I use my N900 as a bluetooth hotspot, there are instructions on TMO on how-to. I am thinking of getting a tablet with Intel Cherry Trail so I can do x86/AMD64 like standard Debian stuff including even some use of wine win32/64 stuff as required. The only serious issue is building a kernel with driver support for Cherry Trail sound, wifi, and bt drivers; no idea on things like NFC, compass, and accelerometers.