A) this is not really Atari. This is the Atari name that's traded hands multiple times (Infrogames? then bought by some individual with a team of like 10 people?)
B) this is a company (again not really Atari besides the branding) that only has a few million dollars in revenue, they can't develop anything beyond a standard box that can download some simple games
C) don't get overhyped, this is not a traditional 'entry' into the console market- this is more in the vain of the NES Classic with the possibility of potentially allowing downloads of other simple games (mobile level most likely)
and
D) for the last time, Atari has been dead for a long time in all realistic sense, and the majority of signifcant games you see with their branding in the last decade or two have nothing to do with this company
as someone else mentioned, it would take a mammoth company to attempt to enter a market like this. This is not even at the level of something like a Ouya attempt.
Not trying to be a total hater, but have been seeing a lot of threads on the internet the past day like the OP's and it gives the false indication (click baitey) that Atari actually still essentially exists and is 'entering the console market'. Which is false, unless you considered Flashbacks or Retropies as 'enterting the market'
Atari as they were once known has been dead since the failure of the Jaguar, their last attempt at reviving their efforts in the industry which resulted in the company folding. Also, as far as I know, historically Atari software and Atari hardware were two different companies (not sure where that has ended up today). Not to mention, Atari never really had much of any IP themselves.
-lets out breath-. Anyway. Cool looking little box but this should be considered an NES Classic sort of thing (without the levels of fandom), not some sort of comparison to the contemporary game market