If anyone is interested in purchasing UDID registration to allow you to run iOS 5 betas on your iPhone/iPad/iPod Touch, PM me.

1.0 BTC per device. Guaranteed to stay active for the rest of the iOS 5 beta period.

(Registration only, no help included for installation, troubleshooting, jailbreaking, etc.)

I doubt the general public would approve of a budget for buying thousands and thousands of AMD video cards. I'm not so sure that would get past any budget hearing.

I had a spare GT 220 lying around that I did some tested with, related to bitcoin. I got about 10 to 11 Mhashes from it. Playing with flags didn't produce any better results, so it looks like you're getting the most you can out of it.

That's not really surprising. They're getting so big they'd eventually get shut down if they were suspected of accommodating money laundering.

Yeah, I should have mentioned that it's just a text file and can be edited with TextEdit.

I assume, since bitcoin was designed according to security best practices, that passwords are case sensitive as they should be. That should be it. When you run a GPU miner (providing localhost as the host and your username and password you set) it should tell you whether it connects successfully or not.

In your bitcoin.conf file you need to set a username and password (and set server=1 so the client starts up as a server not just a client).

on a Mac the bitcoin.conf is in your HardDrive/Users/(username)/Application Support/Bitcoin

If it's not there you'll need to create one. A sample can be found here: https://en.bitcoin.it/wiki/Running_Bitcoin
Just set your own username and password and set server=1

What did this rejected "bitcoin app" do exactly?

Because if Apple rejects an app, all hope is far from lost because a web-app can always take the place of a native app. An online connection is always required for a web app, but still, in this case you need an internet connection to do anything anyways.

I'm currently working on mobile apps related to bitcoin, so I'm definitely investigating the bitcoin/apple issue.

Well, there's plenty of exchanges. Som of the more popular ones: mtgox.com, tradehill.com.
And the ever-popular wiki has a list, partial though it may be, of merchants accepting bitcoins: https://en.bitcoin.it/wiki/Trade

Sounds perfect. Apparently there's many more bitcoin exchanges than I realized.

Have you used this cavirtex.com before?

So, as I am in Canada, I seem to be at a disadvantage (as usual) compared to people in the US.
None of the major bitcoin exchanges seem to support withdrawing in Canadian dollars. Does anyone know of an easy way to sell bitcoins for CAD? I know I could try to find someone else in Canada (like through an online forum...) but does anyone know of any legit exchange websites I can use?

Paying using BTC would be great. The only issue, as mentioned, is the fluctuating value of BTC. You could offer a discount on pre-paying with bitcoins and charge full price (+ markup maybe) if paying at check out.