From what I recall, shoving things into the bottom of the casing is an after-market hardware mod. Especially if you have a model that doesn't have the pci-express card slot (I seem to recall that that's only on certain models?). I'm not interested in having to go to those extremes to be able to do things that, IMO, should be included in the base unit, at least as vendor installed internal modules (ie. USB bluetooth doesn't cut it).

If it had an express card slot (with drivers for EVDO and UMTS cards), bluetooth, and an internal storage option that can take 1.8" HDD and SDD options, then I'd be interested.