I am a complete noob with regards to Blackberry development. I would like to know if it is possible to group items by header. Example: If the header is "Test", and then display a couple of items in a grid beneath it, and then have another header "Testing" and display some more items, so on and so forth. Would something like this be possible? (What I have in mind would look like the contacts on a android device, but the contact names would not be displayed in a list, but rather in grid form) I would appreciate any advice as I am currently working through the sample apps available on the BB dev site.
That would certainly be possible. The GroupDataModel with the ListView have that functionality baked in. You may want to use the GridListLayout if your heart is set on a grid layout.