HP Prime. The programmer dream machine

[debrouxl]

The Prime has much more CPU power and RAM than it takes to run implementations of real-world, higher-level programming languages such as Lua, Micro Python and Duktape.
The TI-Nspire officially supports a crippled form of the first one (basically no io.* and os.*, a platform-specific UI + keyboard layer), and unofficially the latter two.