I should have kept both of mine, but the platform was essentially dead and I had to move on. These days there are two potential replacements for such a device, one is a continuation of the platform, the Neo900[1], the other is the Pyra[2]. I'm going to save up for a Pyra since it's half the cost of the Neo900 and looks like a more capable platform. I don't need a device like that anymore, given how good smartphones have become, but it would be nice to have a pocketable true computer with a keyboard for certain situations. The mobile retro-gaming aspect also appeals to me.

[1] http://neo900.org/

[2] https://pyra-handheld.com/boards/pages/pyra/