Well - the unit comes with wifi + bluetooth dongle, so somewhat irritating to go out and buy another bundled unit. Too bad they didn't go for this in the package (wifi+bluetooth), leaving 3 internal usb ports.

Another option is to have storage in the 3g dongle. The 3g dongle I have includes a micro-sd slot (which of course limits the expandability to 16 GB).

- on the other hand, it's obvious that the keyboard works with the connector - so the spec sheet on their website must be referring to a keyboard usb dongle for extra keyboard.