iPad 2 have been marked as discontinued at Target according to a source who sent TiPb the above screens. Though these only show the 16GB iPad 2 3G on both Verizon and AT&T as being discontinued, our source maintains none of the current SKUs are long for Target's shelves.
That implies that we will not be ordering more, which implies a new iPad is forthcoming rather soon (October-ish, say). Either that or Target's exiting the iPad business, which seems unlikely. A lot of the cases have gone clearance too.