The premise behind renaming LAMP misses a major point: it's the models, not the brands that count.
I propose " HDL". It starts with a space character because the OS pretty much doesn't matter when serving data, as long as the sysadmin is good. Replace the "A" with "H" for HTTP, particularly for those of us who hate the Apache admin interface. "D" is for data, not a particular brand of database or even a particular data storage and retrieval model. As much as people love to fanboy over their favorite language, the programmer is often much more important than the language chosen; substitute "L" for the "P".
I guess an acronym that starts with a space character won't catch on...