Yeah, that's because yahoo have changed their currency converter online to a new AJAX system and i haven't yet worked out which page I need to grab the data from.
It's good, the story-line is a little weak (as at the end of the day it's the same as racing except one-on-one most of the time) but I definitely enjoy it.
If a Mario Kart style race is what you're after, this is what I'd recommend. The power-ups are pretty good (rockets, cannonballs, speed boosts, teleport (to name a few!)).
To add to Tiki Towers, it's one of those games I play when I have just a few minutes spare and not enough time for a race etc.
Tiki Towers is getting quite good actually. I don't really think about the physics but it's good fun. I found it a bit annoying until they released an update allowing you to scroll around the screen, so I'd definitely recommend it.
I wasn't sure about Brothers in Arms but decided to buy it anyway. Haven't regretted it AT ALL! It's very good, admittedly, the controls take a while to get used to but not as long as some of the reviews suggest (car is the hardest to control). There are three different interesting campaigns (all of which I've completed as it's not overly hard!). I would definitely recommend it!