3 ads: http://www.apple.com/iphone/ads/

However,

- $500+ and requiring a 2 year contract
- No access to SIM card (or no SIM card at all)
- No access to battery
- No 3G
- No 3rd party apps

Our flagship Windows-to-Macintosh compatibility tool. Intended for Intel Mac OS X machines, CrossOver Mac will allow Mac users to run their favorite Windows applications and games seamlessly on their Mac. Windows files can be opened directly within your file browser, or from email attachments. No rebooting, no switching to a virtual machine, and no Windows Operating System license required; CrossOver is a complete replacement for your Windows OS as far as your Windows software is concerned.

http://www.codeweavers.com/products/