A non-exhaustive list of variants: The Skytone Alpha-400 uses a customized version of Linux, based on a 2.4.x kernel, with a user-friendly interface optimized for children.

However, recently Exon, the original design manufacturer[dubious – discuss] of most of these devices, announced full support for YouTube and most Flash enabled websites.

The device sports three USB ports, a small but fully functioning keyboard, a touchpad, stereo speakers, and a 2 cell 2.1 Ah battery.

[17] Skytone announced another device called Alpha 680 running Android[18] that features a 533 MHz Jade Tech Z228[19] ARM CPU.

[20] Another similar machine produced by Exon, but not sold by Skytone, comes with an x86 legacy compatible 800 MHz DM&P PDX-600 SoC CPU and is thus able to run Windows XP.