A new update to the Scrabulizer app for iOS has been approved by Apple and is now available in the app store. Amongst other changes, this version adds iPhone 5 support, but most noticeably, the app has been renamed Lexalizer.
This change has come at the request of Hasbro Inc, who have also requested that we remove the TWL and OSPD dictionaries. We fortunately have plenty of other, more complete dictionaries for you to choose from, so you shouldn't notice much of a change.