Time is a flat circle, my friends: you can now play Sonic the Hedgehog [$2.99] on Apple TV. It's certainly a welcome update because who doesn't want more Apple TV games (and this one should work better with the remote than most games). But also, it leads to the comedy of a game going from TV to mobile back to TV in about a 25 year span. And if you prefer Sonic the Hedgehog 2 [$2.99] and Sonic CD [$2.99], those will be getting Apple TV updates on March 24th and March 31st respectively.
It's a good thing that these Sonic ports are still getting updates, because they introduce features not present in other Sonic ports, and the mobile versions are the only ones actually out. So if they ever fall by the wayside like many other notable mobile games, it will be extremely disappointing. But it looks like we're good for now.
This also serves as a great opportunity to mention once more that we really need Sonic 3 and Knuckles to get the Christian Whitehead and co. treatment. The trilogy must be completed, and with the best game in the series, too. The reason why that's not happening could be because Michael Jackson contributed uncredited music to Sonic 3 and licensing could be prohibitive now that he isn't around any more, and a corporate record label would want their cut. Though, considering that Sonic 1 and Sonic 2 had much greater exposure through bundle pack-ins, maybe the market just doesn't show much demand for Sonic 3. And considering that the other games got a lot of upgrades from Sonic 3 and Knuckles, what would the port really add besides widescreen and possibly replacing music? But still, if only for completion's sake on iOS, we need Sonic 3 and Knuckles.