While creative is taking small steps with the ZiiEGG development they have not forgotten about their other flag ship in the Zen series, the X-Fi2. The ADK can be downloaded now and comes with a Zen X-Fi2 simulator, programmers guide, and an API reference. The scripting language for the Zen X-Fi2 is based on Lua. Lua is a lightweight scription language that seems to be catching on. It has been used in places like Adobe’s Lightroom and World of Warcraft.
If you are interested in learning more about Lua, check out their site. If you would like to dive in and start programming for the X-Fi2, a developer group has started in the X-Fi2 Application Development Forums.