There is no such thing as Bluetooth 4.0 + LTE. The author made an error. I am sure that the document talks instead about Bluetooth 4.0 + LE, which is the low-energy initiative.
There is mention of support for cellular service in the documentation (GSM, CDMA, WiMAX, etc), but no requirement for such support to be included. Instead, the document outlines minimum driver support, power management support, connectivity,etc. to ensure that if the device is included it will work as expected.
The biggest issue I can see, is that the new devices will not give end-users a lot of options when it comes to software. These devices are going to be very well locked down, with pretty much zero chance of being "jailbroken." If MS starts charging $500k for a license to digitally sign apps, you'll have to pay it to write or install apps for your tablet. Any chance of running an alternate OS (or dual-booting to x86 Windows, Linux, etc) is effectively gone.
[citation][nom]fancarolina[/nom]They are requiring LTE? Does this mean there are no WiFi only versions?Going to lose sales if you try to make all of these mobile broadband only. I won't buy one with LTE or 3G or any crap like that, even Apple offers a WiFi version of the iPad.[/citation]