Some of the game titles for the product included Tony Hawk's Pro Skater 4 (Activision); Mototrax (Activision); SpyHunter (Midway); Madden NFL 2005 (EA/MDM); Doom II (id Software); Golden Axe III and Altered Beast (Sega); Warfare Incorporated (Handmark); and Duke Nukem Mobile (3D Realms/MachineWorks).

Due to insufficient funding and strong competitive pressure from the PlayStation Portable (PSP) from Sony (which was pre-announced at E3 on May 16, 2003, and shipped in North America on March 24, 2005), and the DS from Nintendo (released on November 21, 2004), Tapwave sold the company to an undisclosed multibillion-dollar corporation in Asia in July 2005.

An MP3 music player is included in the system's applications, and allows the creation of custom playlists using drag-and-dropping of files.

The software however was limited in its conversion abilities, enticing users to pay for the full version[citation needed].

It has been suggested[citation needed] that this difficulty in converting video for the device diminished the Zodiac's success.

Several aftermarket DivX and XviD players have been developed (such as the TCPMP), and, at the time of bankruptcy, Tapwave were working on an update to supply MPEG-4 hardware decoding[citation needed].

Furthermore, due to the insecure clip holding the stylus, they could be knocked loose and potentially lost.

Tapwave also provided proprietary APIs to allow developers to take advantage of the Zodiac's graphics and sound hardware.