With rumors surfacing that Apple may be working on a streaming television service with Comcast, it's only natural that some observers are beginning to wonder what form Apple's smart TV will take in the future.

To that end, Germany-based Curved has come up with a very realistic-looking take on what it might look like if Apple decided to launch an answer to Google's Chromecast HDMI dongle.

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The designers dubbed this concept device Apple TV Air — not the most creative moniker, but also not out of the realm of possibility, given Apple's growing obsession with the word "air" to describe its slimmed-down products.

One image (see below) shows the Apple TV Air concept device in direct comparison to the real Apple TV box and remote control. The juxtaposition illustrates just how closely the concept hews toward Apple's existing design aesthetic.

Housed in a convincing Apple-style case, the Apple TV Air comes with a slick black dongle, emblazoned with the Apple logo, along with an attractive remote control that is about the same size as the dongle.

Some might see this concept as wishful thinking, and perhaps it is. Still, the notion of dongle-based smart TV solutions seems to be catching on — as shown by a recent report that suggests an Amazon HDMI dongle is in the works.