Tether has put their popular Tether for BlackBerry back on sale for today only. It is 50% off the ridiculously high $49.95 price which brings it down to $24.95.
I finally got a chance to try Tether out this past week and it works pretty well. Still it blows my mind that users prefer tether over the free IP Modem tethering that you can setup. Though sometimes Tether works when IP Modem is blocked. The downside is that starting up Tether for BlackBerry is a adds another few steps to the process since you need to start the app on your BlackBerry and PC before they both connect.
Still Tether remains the best alternative out there for people who cannot figure out how to setup IP Modem tethering or have carriers that block it.