What do you mean by "portable keyboard"? Fujitsu has IR keyboards (I like mine, not the IR mouse though) and any usb or bluetooth keyboard you like can be used (if you have bluetooth). If you really want a small descent portable keyboard I recommend the Stow-A-Way keyboards, either bluetooth or usb depending on your components. They fold up small enough to fit in your pocket and have a descent feel when typing. If you refer to something like Motions hardtop keyboard then your right, Fujitsu doesn't have one. I agree its something I would like to see also. I seldom use my keyboard but I like the idea of a screen cover that doubles as a keyboard. Rather or not I would buy one is another story.... I use my Fujitsu slate in a bump case 90% of the time and a Motion style keyboard wouldn't be any good to me.