At this stage ICEfaces v1.0 is feature-frozen (due to ship by mid-May), however, we are extremely interested in user-suggested features and improvements and I will ensure that your requests are added to the product roadmap for consideration in future product releases.
Generally speaking, features will be prioritized based on customer feedback and relative complexity/effort/risk in implementing them. FYI: off the top of my head I know that a dataTable that supports row selection has been requested by other users so it seems likely to be added soon.
Thanks for your input and interest in ICEfaces!
VP Product Development
ICEsoft Technologies, Inc.