http://www.gamespot.com/news/2005/01/05/news_6115767.html
Numerous developers we spoke with indicated that the PSP unit turned out to be much stronger than expected. Most developers singled out the PSP's screen as the most surprising part of the new system.
According to EA associate producer Joel Manners, "the beauty of the image on the screen was far brighter, far crisper, far more robust than we thought it was going to be. In fact, when we first got the development kits in, we had to rethink how to do more--the screen was way more than we thought it would be."
Developing for a new platform is always a challenge, but, in addition to learning how to program for a new system, developers must also put thought into how to create games that take advantage of the portable nature of the system and its powerful hardware. Konami product manager Jason Enos suggests that, "from a sheer conceptual standpoint, figuring out what types of games would be best for the PSP is a major challenge."
Even with all the work put into creating quality games for the new system, many developers admit that the PSP's quality design and stylish appearance will help market penetration. According to EA's Manners, "the PSP is so cool that it's going to be one those early adopter status symbols that people are going to want to pull out and show off."