psp v2.5 firmware
The PSP firmware has been recently updated to version 2.5, and the most notable addition to the the feature set has been the support of Location Free TV. This is a Sony product that allows (with a Location Free base station) the content from your TV or DVD player, to be streamed wirelessly over a local or wide area network. While the hardware hasn't been made available in the UK yet, the concept is one that seems interesting and slowly Sony's disparate family of product are seeming to be able to be used in conjunction more easily.
Other minor tweaks include the ability to save the display settings within the web browser (how such a glaringly necessary feature like this got missed out from the original v2.0 is anyone's guess); alongside the usual security hardening measures (an AES compliant implementation of WPA encryption is now supported).