I am planning a network environment, there will be roughly 8 x R600 and 2 or 3 of the outdoor equivalent. I know the T610 does not support Unleashed and appears to have higher specs than the R600, is the T300 the closest match?
Unleashed is what was used when 5 R600s were set up at a different location after it was recommended. It worked well there so I was planning to use it again. Is there a better alternative to use outdoors?
Give it a try with Unleashed. However... if you find you need to disable the 2.4 radios on some of your APs... you are going to have problems. If you want an SSID on one ap and not another... more problems.
If you had 3 APs... you would likely not see any of these needs. But up at 11... you might need more control. At that point you are in ZoneDirector land.