Chances are that I'm not gonna get mine til october but when you get your order in it feels a lot better. I know I'm getting it and like you I too don't have a PSP. The irony was that I sold it to buy a 2nd PS3 for Jailbreak.
My advice would be to get your order in ASAP and then just watch it play out safe in the knowledge that in about 2 weeks time there will be a far superior hex/software floating about for you to flash.
I understand the frustration, believe me. Personally, if I was you I'd just go for a teensy board. The orders are backed up til about mid september and by that point the software will have come on leaps and bounds.