theres in all honesty not a product of its own thats called v5pro studio, i think its a mistake by e.on to call it that, v5pro studio is a bundle, v5e + all the modules, thats what it is. As far as modules goes i think that part is a big step in the right direction from e.on, everybody gets to get the features they want, nothing more, nothing less. the "pros" has v5I or possibly v5e + some or all of the modules if they can live without some of v5I features. the rest has v5e and once they find that theyve hit the roof they can pick up one or more modules instead of having to buy v5I. So modules is for the better for everyone, both us as customers and e.on.