Carl is just messing with me now!
12/22/2012 "It's no secret that White's is working on a waterproof TDI. Actually, it's my personal project. All-new case, all-new circuit. Goal is 6us, so it might not run Coiltek coils."
2/18/2013 "I need to squash these rumors of a "waterproof TDI," no such thing is in development. What I'm working on (and it's my personal project) is an all-new PI design that discriminates. The basics are working, but it's still further out than I'd like. Sorry, no dates. New waterproof case is ready, though."
3/23/2013 "Originally I intended to put the TDI in a BeachHunter case as the PCB was designed to fit it. However, that case has many problems, so we decided to design a whole new water case. Ergo the delay. It's an official project and is moving along but I can't offer a release date."
Hopefully by next winter. I was hoping by this winter, but winter is about over. Of course I have been hoping since the day I first ran a TDI. Patience is a virtue for sure in the metal detecting world.