It can't be ignored that when Palm announced the WebOS, the official successor to the PalmOS that now comes in the Palm Pre, it did make quite an impact in the industry in terms of being a powerful operating system that could compete with the iPhone OS.
But as Mojo, the Software Development Kit for WebOS, has been released to the public, much of the developers are claiming that WebOS is not meant for Gaming.
Craig A. Hunter seems to one of these developers who claims that Palm Pre does not provide the required environment for developers to build sophisticated apps for the device that are now a days required by smartphone users and can be commonly seen on the iPhone OS. To his concerns, lack of OpenGL access is what's keeping developers to explore more of WebOS in the Gaming area.
This makes us to believe that all future devices from Palm will also not be as sporty in terms of Games as they will also run on the WebOS. Perhaps the limitation to Graphics hardware is what's causing all the issue and Palm may remove this limitation in the future.
As for the iPhone, Gaming has already become one of the its key selling points and if Palm really wants to compete with it, it will have to open doors to allows developers to fully explore the WebOS environment and make Games with rich-graphics.