The bonuses for the Iconians make no sense. Why are they +50 espionage? The Krynn are spies, not these guys. Frankly, in addition to not making sense for this race, +50 espionage is totally useless. I'm happy to get my espionage bonuses from anomalies. Please redo their bonuses with something a little more in character. They get fewer optional points than anyone else, so they're very hard to customize.
The 'Super Adapter' ability can either be okay, or useless, depending on what size map you're on. Along with it being a total crapshoot as to whether or not you get any planets that the ability is good for, both types are also easily accessible to other races. No-one now can do radioactive worlds, so why not at least drop aquatic or toxic and replace them?