Widely known as one of the first in the Android camp, this device kicked off what is now one of the more beloved lineups in today’s smartphone market. Probably one of the more recognizable Guess the Phones we’ve done, this device—along with its successors—was never about all-out next generation specs, but an overall experience of software and hardware. It came after one of the first big moves by Google on T-Mobile; the rest is history.

Released back in 2010—but rumored back in 2009—this device was developed by a company that today has produced one of the best smartphones we’ve ever seen. By 2013 standards, this mysterious device is laughably tiny, but back then it was considered comfortable and just right. Holding it the other day felt like I was picking up a device made for little children; it’s funny what a difference three years in smartphone evolution will do.

As for specs, well, that would be giving away quite a bit. It had a 5-megapixel rear camera, I can tell you that much. And it came running Android 2.1 right out of the box. My, how Google’s Android has evolved since then, becoming the most widely used mobile OS in the world. Oh, and the handset also came packing an Adreno 200 GPU. Yeah.

When this device launched, I came very close to purchasing one, but decided against it. Being the first in a carefully curated family of Android handsets, the device was an early glimpse of what Google’s mobile OS was capable of on a handset designed specifically for the software. It was never the best, and it wasn’t without its issues. But it hinted at greater things to come.