Hi - thanks for the reviews! Please do let me know of any issues that develop. Drop me an email and I'll let you know when the full version releases, which will be after a two-month hiatus.
Re: filters: While I appreciate the requests of users, whether they are conserving fruit, fresh water, or the sanctity of Tommy and Janes' minds everwhere, I will not be adding any filters at all beyond the already extant ad filter; it's contrary to the point of the exercise. This product is not appropriate or intended for anyone who doesn't want to see porn, or worse, skinny guys in wifebeaters posing next to their IROCs. (shudder).
If this matters to you, I'd suggest you not download the screen saver. Or make a filtered version yourself--which would be trivial to do. The source code is available on my site.