It looks like lbicelyne's still preparing to integrate WiFi into the emulator's next release, as it's again the centerpiece of this demo release. I couldn't find any mention of whatever bugs this release fixes, apart from the following instructions on getting it to work:
1. Switch on wifi, All PSPs choose p2p in Wifi Game menu. You should also change your controller as well. P2P mode could work and all psps have display.
2. Every PSP choose the same game. If you are using p2p mode, please use sync game menu on the 2nd PSP. You can press left/right to select sync game menu on reset game menu.
The PSP was ambition personified, so much so that it’s kinda wild to look back and realise what exactly Sony cooked up in 2004.
I still play my PSP. Sadly the UMD drive has stopped working, but I modded it to still be able to play my games (and then some). Such a great little portable.
The game looks like fun and here is the announcement trailer.
Celebrate Final Fantasy IX's 25th anniversary with the latest merchandise, including figurines of Zidane and Vivi, and a range of t-shirts.