Here's a link to a port I have made of ps2yabasic to the PSP. It lets you play (but not edit) all your yabasic saves on the PSP.

I've included eboots for both 1.5 and 1.0 BIOS versions - put the correct folder(s) in the PSP/GAME folder on the memory stick.
Put the yabasic folder in the PSP folder on the memory stick.

What's working?
Pretty much everything except below!

What isn't working?
It runs about 80% of the speed of the PSP.
The console output window doesn't work.
No text input is working.
Slight memory leaks.
The beep doesn't work.

Things to note:
It slaps the PSP into 333MHz mode while the interpreter is running, and back into 222MHz mode at exit.

Press both shoulder buttons together to exit the interpreter.

Have Fun!

Jim
Bibo ergo sum

NEO spring coding contest 2006 for PSP announcement

* PSP APP division
There will be 10 winners for psp apps too. No restriction of coding except to add the "NEO spring coding contest 2006 for PSP" splash screen in your app.

The top 10 prize for PSP contest are:
The No.1 : MicroSoft X-BOX 360 deluxe version whole set
The No.2 & No.3 : Neo-PSP 4in1 mini convertor + 4GB HD whole set OR Neo-MAX 16Gb whole set (winner can choose)
The No.4 ~ No.10 : Neo-PSP 4in1 mini convertor whole set OR Neo-MAX 1Gb whole set (winner can choose)

NEO spring coding contest 2006 close time : 20th.Feb 2006
Winner prize send out time : 28th.Feb 2006

BTW: we need the new splash screen for PSP 2006 coding contest,please show us your design if you can do it

It's not really Xbox related, but we've always been following up on XLink Kai(info) stuff so I thought it'd be interesting to mention we got some leaked information from sources close to the people behind the XLink Kai tunneling software claiming that they are about to announce a new commercial PSP online gaming network - possibly as soon as Q2 this year.

Will this be a tunneling service - or something more unified - like Xbox Live!? Is it officially supported by Sony (unlikely)? Why is it a commercial product from a crew which have always contributed free services to the community? Will it get support from game developers? How is it different from the existing Kai PSP support (that will not cease to exist of course and development will continue) - justifying a price tag?

Notable members of Kai's technical crew have either resigned or gone missing over the last few months - so this story could have some weight.
Looking over XLink's site gives nothing away, and attempts to contact the resigned members have gone unanswered.