Recently while traveling, we ended up at a hotel with almost useless wi-fi, no jailbroken iPhones and thus almost no connectivity. Break out the Android, turn on the hotspot, hand out passwords, and now my entire team is back up and running at decentish speeds. Probably helped us land a contract in the meeting the next day.
It wasn't perfect, the phone would drop connection every so often (hey, it's not really supposed to be doing this), and would run rather hot. But it worked and got us out of a bind.
I'm letting the rest of my team know about this so that they might jailbreak their phones and be able to use this when they are running around without an Android user. Awesome!