"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
Dual 2.5GHz PowerMacs Shipping
Apple first announced the Dual 2.5GHz PowerMacs in June but initial estimates expected units to ship in late July.
Aside from some early Cinebench benchmarks there have not been many hands on reports of the new top end PowerMac.
Photo of the inside of one of the new 2.5GHz G5s.