The main problem with TB isn't that they're selling the way to play newer games on 3.55, but that they're selling the games THEMSELVES (sure they released a lot of eboot fixes for free on the net, but the most popular games can be only be played with TB if you purchase their bootleg copy of the game, meaning they're basically stealing the games and selling them).
What's stupid is that they're most likely losing a lot of customers by doing that. If their dongle allowed to play 3.60+ games without any need for a patch, or at least if they released all their fixes for free, I for one would probably buy it, and I'm fairly certain I'm not the only one thinking the same way.
Another thing is if/when this thing gets reverse engineered or cloned (and it's already been cloned) the TB team will most likely stop releasing eboots and disappear, since they won't be making a profit anymore. They will either disappear and stop releasing eboots, or make a JB3 to play 4.00+ games.
PS3 Slim CECH-3004A 160GB (500GB)
PS2 Slim SCPH-70004 - FMCB 1.8b