It's possible, but whether it will work or not remains to be seen.
I imagine that a custom signed IPL would work, due to there being stuff in the latest IPL to handle the slim - which means it might accept the same custom signed IPL's.
However, whether the same battery will enter the PSP into service mode, is another matter...
We won't be able to tell until it's released, which should be less than a month away.
Cloudy
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