No date has been set as of yet, but Sony expects to release the new firmware updates for the PSP and the PS3 within the month.
The PSP firmware update 5.0 will give you the option to enter PSN card numbers and vouchers from your PSP and access the PlayStation Store for PSP. The rest of the PSP updates are fairly low key.
The PS3 firmware update 2.5 will give you more of a detailed friends list, such as how long it has been since your friend has been signed into PSN. The update will also give you a icon in the top right corner for inputting PSN card and vouchers. Also support for the upcoming official PS3 Bluetooth headset will be in this update, plus you will have the option to have your system turned off once background downloads are completed.
This is just a preveiw of good things to come from Sony. I cant wait to see what else Sony will come up with in the near future, because I think Sony has yet to unleash the true potential of the PS3.