In this project, I am building a replacement logic board around a Raspberry Pi CM4.
I have a project on Hackaday.io and this is the corresponding Github repository.
NOTE: Newest development takes place in cm4 branch
The 2010 iPad is completely unsupported, and is almost useless. It will still run old apps, but almost all internet-connected apps are broken. Even browsing the web in Safari is difficult, since iOS 5 has out-of-date TLS CAs.
But still, it's a pretty good piece of hardware in many ways. If we were to replace the logic board, we could still use these parts: