Here are a couple of links for my ABAP friends from the latest edition of the Developers newsletter. There now is an iphone app that does an sap netweaver quiz that seems to be pretty cool. Put together by a developer that was learning objective-c on the side. I was happy to see that working in abap and objective-c has it similarities so as soon as I can get my Mac upgraded so that I can put snow leopard on it, I will also be trying my hand at learning objective-c and developing app for the ipad to go with the SAP interface that already exists for the ipad.
My dream is to be able to develop useful apps for the IPAD that sap developers could find useful. Time will tell as upgrading a Mac is almost as expensive as buying a new one.