Zen tend to be tight lipped until a product is ready for launch and of course they don't launch it until its right.
Therefore I doubt you'll get any response from them on here, best keep your eye on the website.
Virgin (ADSL) => Namesco => Newnet => O2 => Plusnet => Zen => Newnet => Zen Lite 8000
Note: I don't lay turf for anyone. astro or otherwise, all views and opinions expressed are my own based on experience.