The PSP's analog input is not a traditional stick, but a sliding flat panel; its odd placement originally led to speculation it was a speaker. Concerns existed regarding the practicality of the input (its position requires a slightly asymmetrical grip on the unit to adequately use, with the left hand being lower than the right.) While it is used in the same way as the analog thumbstick of a modern console, the resistance springs are calibrated differently: they are softer, making quick, coarse adjustments a bit easier, but fine-grained ones a bit more difficult.
Sony had delayed the European launch (originally set for March) to meet demand from other regions. The PSP will be launched in South Korea on May 2, 2005; followed by a joint launch in Singapore, Hong Kong and Taiwan on May 12, 2005.