Amazon just shipped mine out.

Can't wait that long so already playing the ISO version.

with no career mode yeah I'm a bit disappointed. But getting it anyways, its a GT game why i shouldn't?

I've bought GT PSP today, and the game is utterly awesome. It trully feels like a GT game, the feel of the cars is superb, and the graphics sometimes rival the graphics of GT4, especially in the detail of the racing cars and in classical tracks like Trial Mountain.
The driving challenges are really good, they're a mixture of the licenses of GT4 and the driving school of Tourist Trophy.
So far i'm loving each part of the game :)

Nice review, and I agree 100%.  I downloaded it from the store yesterday and have been playing it non-stop.  I guess VGchartz will be undertracking it's sales since downloads will probably be a considerable number of sales.  

I will buy it as soon as possible. =)

I've been playing it non-stop too (Sorry fellow dissidia players, i'll be back to it after a while :P), actually i was playing it till 5 minutes ago, went the battery of my psp went dead xD.
The game really draws you in, and the challenges are superb. I thought the first challenge set was hard, but when i unlocked challenge J to Q I was like OMG xD so far i'm getting all golds, im on challenge O-4, got to complete it when I get back home.
I've tried some drifts and time trials, and they're really good too, and the single player races draw you in as well, because of the different unlockable skills, from D to S.
This game will really keep me going until GT5 hits the PS3, hopefully by then i'll have almost all the 800+ cars so I can upload them to GT5 xD

its good just a bit to easy i got the CE with gives me the bugatti veyron at the start

You guys do know that with every PSP GO sold in europe, 1 copy of GT psp is sold for free? VGC will not be tracking it, but you can add w.e PSP sells from this week to the next, to GT psp's numbers.

I picked it up. I have only had time to play 1 race, but it was great fun, and looks wonderful. I have also got Motorstorm Arctic Edge, which I would give the edge to in terms of gameplay, but they are both must have for PSP owners

@NewCloud

Yeah, I bought the CE too, plus GAME gave me a voucher for a free Enzo too. I haven't tried them so far, in single player i'm racing mostly the RS8 that i bought in Day 14 xD. I'm saving up CR's for the Ferrari F1 car, it's 5.000.000 Cr. So far I got 6.200.000 Cr, so I can afford it now, but it has shown up on the shops so far :P