Don't throw out your handhelds: there's a lot of life left in them. According to an analyst at DFC Intelligence, the ever-expanding market for both DS and PSP will help allow it to beat the current generation systems: "Under the right scenario, by 2011 the combined installed base of the DS and PSP could exceed that for the Nintendo Wii, Sony PlayStation 3 and Microsoft Xbox 360," noted David Cole.
While Nintendo will be responsible for much of the growth of the handheld industry, Sony is certainly not out of the game--they will "establish a solid position in the marketplace" (if they haven't already). Cole reminds investors that "existing console game publishers have found it is possible to make over $100 million in revenue from a single PSP title based on the right franchise," a figure that's not to be scoffed at.
Ultimately, PSP's success will be determined by a number of factors, with Sony's support for the platform being key. Sony said they're working on exciting new things for the platform at GDC--hopefully, it's true.