Can i use my laptop as router for my psp

Yes, provided the laptop and Play Station Portable can communicate with a common network protocol and the laptop has a means to communicate with a local or foreign network.

That said, these criteria alone do not necessarily mean the laptop has the necessary software to support packet routing/forwarding and/or the ability to resolve network names, only that such communication is possible given the above criteria. If using Linux (or another open source Unix like operating system) on the laptop, it may be much easier to configure the laptop as a network router for a PSP or any other networked device. [JMH]