Arduino + iPhone

Hi, I want to control my project through an iPhone. I am thinking about using the following guide to do it. It says it's not confirmed its support for iOS 5 which I have but I think the guide hasn't been updated in a while.

http://makeprojects.com/Project/Connect-an-iPhone-iPad-or-iPod-touch-to-Arduino-with-the-Redpark-Serial-Cable/1130/1

In the product's page says its compatible with 4.3 or later

http://www.makershed.com/Redpark_Breakout_Pack_for_Arduino_and_iOS_p/msrp02.htm

Do you think it will work with iOS 5? Also, if you know an alternative to this, I'd appreciate it, it's quite expensive.

You could try one of these: http://www.sparkfun.com/products/8295. How do you plan to implement your controller?

Why not use the iPhone browser and WiFly shield? You don't even need a router in Adhoc mode. I was doing it over ethernet, but not for much longer.

I have one of those cables. Works fine with iOS 5.0 and 5.1.

I think my question has been answered. I'll probably buy it, It has to be done before next month and I don't have time to try the other options. Thanks for replying!