Hi Guys:
I doubt that it makes sense for Shearwater to add another offering to its product line. This computer accommodates both recreational and technical dive profiles with ease. In addition, it has the easiest menu to understand the easiest interface to use. In addition, the company provides excellent customer service, either directly or through its retailers. If you look at the offerings on the market (w/o transmitter option), the Shearwater units are highly competitively priced.
Shearwater Petrel/Perdix - $775
Mares Icon HD - $799
Scubapro Luna - $729
Oceanic VTX - $949
Hollis TX1 - $549
Suunto Eon - $1440
Liquivision Kaon - $650
If you look at the list, I would say the majority of these units are targeted toward the recreational diver, apart from the TX1 and the Petrel. Hollis remains AUP's offerings for the technical diver. When I purchased my Petrel, I did not intend to venture into Technical diving. I purchased it because it had gorgeous display, an easy to read/understand menu, an easy to operate interface, even with dry gloves, and the ability to accommodate bungee straps. The unit has many features that any diver, whether recreational or technical, would appreciate.