Apparently Amare was back there as of the 5th of June, working on his game. Diaw's been working out too - strength and conditioning, shooting drills and dribbling drills.
To me, this is great to see. They'd barely had a holiday and they were back already, well before the NBA Finals were over. I knew Amare had a decent work ethic but not to this extent! And remember, they both have long contracts - it's not like next season is anything remotely close to a contract year. That kind of dedication and work ethic is really rare, and it pleases me greatly to see Suns players having that attitude.
Rest of the NBA, watch out for the Suns next season