Just a simple questions.
I want to deploy WLC5508 and am considering the best ANtenna for Indoor deployment.
Will AP3500 series do the job?
The new 3500i/3500e and 1260 will be supported in the up-and-coming release of the 7.X firmware (sometime in June when the first shipment of the WAPs are due).
For indoor use, you don't need to use antennae on the 3500i because the antennae is built-in. The 3500e and the 1260 have external antennae.
The AP3500's are pretty new and has more features than the other AP's. Do you really need all the features is the question. Here are some links you probably already seen. There is also the 1260 that almost has all the bells an whistle as the 3500's except for the spectrum expert that can be enabled while associating clients.