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I'm ready for a new beta. I know I will get the "it's a beta" spiel. I know this, I was well aware when I updated to it. However as far as fluidity goes, beta 2 was much, much better. As far as apps opening and closing, iOS 5 I faster than four, but beta 3 isn't as smooth as even beta 2 was for me. As far as the hotspot, usually when I reboot it comes back up for a little while. I managed to tether about 4GB out of it while our neighborhood had repairs done for a ISP to upgrade out connection. Which btw was only 2.5-6mbps before, is now up to 20!! Woot woot, took me barely more than a hour to download lion.
more info needed.
what firmware u running and what u using to jailbreak.
from what u have said i assumee u use redsnow and have a tethered jailbreak.
this means u have to use redsnow to reboot ur device in jailbroken state.