I've been playing a bit more Jetpack Joyride lately (to the tune of 3090 games and 7590km since I mentioned picking it up again). Haven't gotten all the medals, but I'm getting close.
Actually, it was kind of funny; I was at the local Apple Store with my in-laws, to help them with something. Having a few minutes on my hands, I played around with an ipad mini, and found a custom version of the game installed. Fun. The mini won't get me to go buy anything, but it's intriguing. I might buy one once they have a retina version available, particularly if my iPod Touch dies (it'd make a nice replacement for that).
I also played it again on a new iPhone at the store. It played a tiny bit differently. I'd wondered about the widescreen ratio, and the way that was handled was to keep the person a further from the left edge of the screen, so that the game stayed the same difficulty. Clever way to use the extra space, without making the game easier. Actually, I mis-spoke a minute ago. It looked a bit different, but it played identically.
I also figured out something the other day. You have a specific time period after teleporting, where you can't do it again. I thought that was just a game-balance thing, so you couldn't repeatedly teleport to get out of almost anything. That might be the effect, but I'm pretty sure the reason is because you teleport forward. So there's a short time where you stop moving forward, to get back to your original horizontal position on the screen. And I think that the time it takes to get back to that position is identical to the no-teleport time. Subtle, but interesting.
And I just want to say that the Profit Bird doesn't like me, lately. Last three times I've had the mission, 'Travel X Total meters in the Profit Bird'. Last time was 1250m, I got 1037m on my first run. Not too bad. The time before that: travel 500m, got 496m on first run. What are the odds that there would even be an obstruction there? The time before that: travel 1000m, got 995m on first run. Yeow! Only saving grace on that last one was that I got the Bird again that game.
Now, a small complaint: I'd really like to be able to get all the stats on the prior run (or, even, on the current run). The stats are obviously kept, so it'd be cool to be able to see them. Not a big deal, but it would be nice.
Oh, and a minor strategy note. I originally mentioned not liking the gravity belt, that I found it more disruptive than the shoes. I recognized, even then, it having potential for allowing one to get further, and I've since experimented with it. In fact, I rarely play without it nowadays (less than 10% of the time, I think).