How are you as a developer supposed to design the reports until then? Today I create *.igr files that the users can view and export to pdf/excel. I also use custom datasources (POC objects). Is that going to be possible with ReportPlus? Is there going to be a way to create reports based on existing *.igr files?

You can grab ReportPlus iOS form the App Store now and see both the viewer / design experience on iOS.  For Desktop, we'll have a viewer experience (no report designer) in the summer timeframe and later in the year the Viewer + Designer experience.

Will we see an early preview so we can have a look and decide the way forward?

Our current plan is to include R+ in Professional, but we haven't made any official announcements yet.  In the next couple of months we'll finalize the packaging and I will let you all know.

so is ReportPlus for desktop going to then be included in Infragistics Professional ?  Or do i have to spring for ReportPlus desktop in addition to what i already have?