for powerusers, I generally wouldn't recommend that.
Ehh, I just like to have several tabs open and watch Youtube videos on all of those tabs (let it load on mute while watching something else lol) or open all 90+ of my webcomics in new tabs and let them all load at once and read the updates one comic at a time.
so tabbed browsing should not be a problem
The issue I am foreseeing (with limited knowledge on the subject matter) is not a problem with tabbed browsing per se, but an inability to even use multiple tabs at all. One broswer window, no tabs.
On that note, (newer) android tablets should be able to use an OTG adapter to allows USB-host mode for the mini-usb port if they have one. My I9300 smartphone can do it, but it's possible not every tablet or phone supports it. The OTG adapter converts to a regular usb port, so that'd allow you to plug in any USB device, or multiple if you use a hub. The device obviously does have to be supported by your OS. My phone did pretty much work with any USB device I have lying around, from hard drives to mouse and keyboard.
Sweetness, that is quite awesome to know.