Yeah, I wouldn't expect iOS6 until WWDC. Apple does always have a brand new apps to show off the features of the iPad. iPad 1 introduced iWork, iPad 2 gave us most of iLife.
It would be a real bummer if the skipped right over iPhoto and went straight to Aperture for the iPad. I really want to be able to manage my iPhoto library on my iPad and have it be in sync with iPhoto on my computer. However I think we're still a few years away from that.Well there's always been rumours of Apple bring some of their more Pro-Orientated apps to the iPad. Presuming the iPad has a Quad-Core processor, it could be possible for them to bring Aperture or Final Cut Pro to the iPad, especially with the Retina Display giving add definition. But i guess those are more niche apps, where as the iWork and the iLife apps we have on the iPad today are quite consumer orientated.
It would be a real bummer if the skipped right over iPhoto and went straight to Aperture for the iPad. I really want to be able to manage my iPhoto library on my iPad and have it be in sync with iPhoto on my computer. However I think we're still a few years away from that.