Is there any chance that an AP500 might be developed with internal antennas?
I have at least one deployment where the AP541N might have been seriously considered, except for its external antennas, which for that site are too vulnerable... of being moved, tampered, etc.
So in that case the AP1142 with its internal antennas and smaller footprint, is a better fit. But the 1142 is a lot more expensive, doesn't do clustering, etc.
If a new model of AP500 were developed to fit into the casing of an AP1140 that would be, for some customers, quite an enticing product!
But I'm not holding my breath... it seems Cisco made a decision to use only external antennas with these.