There aren't many tablets with integrated LTE support. It is hard enough to include 3G without pushing the price too high.
One of the slates that do have such connectivity is ASUS Transformer Pad TF300.
As it happens, Germany's O2 network presented a video
in which that very tablet is put through a speed test. It seems to load YouTube videos quite easily too.
For those who want numbers, the download speed reached 42 Mbps and the upload got to 32 Mbps.
As far as early adopters of the next-generation broadband standard go, the Transformer Pad TF300 isn't half bad.
For the rest of what we know about it (or TF300TL, as it is otherwise known), go here
. Don't expect too much though. Whatever info exists right now is because of a FCC filing, not some official disclosure.