that ain't happening, I'm afraid. SRB2 doesn't even have its own wad editor, we use SLADE. And Zone Builder, an offshoot of Doom Builder 2, would not be getting an Android port either, and would still need SLADE for level headers and such. The only thing you could really do is make text files, which you could change the extension to .lua, meaning you COULD make Lua scripts, but you would have no ability to create anything else on mobile devices alone.