I have pretty much finished the first version of the PokerDIY League Webapp for the iphone (m.pokerdiy.com - will redirect to main site if not using a mobile browser) and learnt a fair bit that may help others:

To test your site/webapp on your iphone you can use Windows Safari and change the UserAgent to the Iphone browser. You can now view your mobile site on your desktop instread having to use your iphone = much easier debugging! You can read more about it here.

Here are some cool design/dev links for Iphone/mobile development

• http://iphoneized.com/2009/05/8-ways-view-page-source-code-iphone/
• http://iphoneized.com/2009/04/number-iphone-optimized-content-management-systems-blogs-wikis-forums/   (No DNN!)
• http://labs.blackbaud.com/NetCommunity/article?artid=662  (iPhone Simulator)
• http://mobiforge.mobi/designing/blog/iphone-web-design-patterns
• http://www.practicalecommerce.com/blogs/post/104-Website-Design-for-the-iPhone
• http://www.smashingmagazine.com/2009/01/13/mobile-web-design-trends-2009/

And some great galleries of iphone sites (for ideas):

• http://cssiphone.com/

There is also this thread on iPhone design strategy for DNN sites which I applied to PokerDIY (ie. do you start from scratch or try and use your existing site?). We need more people to use MobiNuke so that the developer starts work on it again (I have hit a few issues and there is no documentation).

Do you have a DotNetNuke mobile/iPhone site or app? Share your links here...