Apple already entered the Console market with the Frodo or something... it failed.
Wasn't it the Pippin or did they try more than once?
The Apple Bandai Pippin. Apple only designed it, they never actually produced it themselves. They intended to just license the technology (similar to what Trip Hawkins did with the 3DO, he just designed the system and then licensed it out to companies like Panasonic and GoldStar). Less than 100,000 systems were manufactured and the only major publisher was Bandai.
ShyGuy, how would Android be a system? It is just a operating system, not a hardware system. There are also only 2 handheld systems (iPod Touch and iPhone have gaming capabilities, but it is not their primary function. DVD players can also play games, but they are not considered game systems). Assuming Sony makes a PlayStation Portable with phone capabilities (like some fans speculate they will), it will not beat Apple or Nintendo.