The new version of SPListViewFilter is published on CodePlex. A new type of filter is available. It's a slider that enables you to select one value or range of values.
In SPListViewFiler 1.7 implemented functional allows selecting these fields: ID, Folder child count and Item child count.
Also, I've fixed bug which threw up while the first configuration of the web part and other minor bugs.
What will be in 1.8
In my post about SPListViewFilter 1.6 I wrote the roadmap which can't be held by me. And one of the reasons is this: for supporting SharePoint 2013 new separated version of filter will be published after the release of SharePoint 2013 beta.
Now I'm working on prefiltering data in the list to display a number of items that fall under parameters specified in the filter.