I want this because:
1.You could share plugins on the website
2.code via lua and a API so making one is easy
You mean Flash? As far as I know, A: lua is unprofessional. B: There is probably no converter
3."official" plug-ins ie. appinventor plugin
That would involve the companies working for this little tool. Unlikely
4.a easy plugin maker web app on the scratch website
It would just be a friendly text box with some documentation around it.
I am blue!