I had the OG iPod Touch, which had the same software (minus the phone, camera, and GPS parts).

It did web browsing very well.

And it came with Maps (which, at that time, used Google's data).

It was initially amusing back then when the world was commonly filled with wide-open 802.11 networks to pull out that little pocket computer, connect to a nearby network (if it hadn't already connected to "Linksys"), and browse an online map -- from about anywhere with a building nearby.

Wifi-based geolocation was also spooky-good at that time.

Anyway, it didn't do much else that I found useful. It was generally lacking features that I'd been using for years with a Handspring Visor (which itself ran on a pair of alkaline batteries for months).

Early IOS didn't even have a clipboard to cut and paste with.

So I jailbroke it. I added multitasking, an app "store," a clipboard and a bunch of other fun stuff long before Apple allowed those functions.

I think I even had a good bit of the Debian userland installed at one point.

After that, I used it all the time for stuff (until the OG Motorola Droid replaced it in 2009, which was easy as pie to root: just dump a special su on there and run it).