Look, if anyone put SPGL or anything remotely like it in LWJGL I'd just forget it all and start over. I want the minimum required in the LWJGL to write games. Absolute minimum.
The absolute minimum required to do games is not a lightweight games library, plain and simple; therefore you should really rethink your project's name
It's still a "G"ame library because we don't have any pretensions to integration with AWT and the native methods we've got are methods you need in games and that can't be done in Java (or can't be done in Java unless you have AWT).
That doesn't make it a game library, since there's nothing specifically game-centric about it. AWT in and of itself has nothing to do with gaming specifically, and therefore your lack of pretensions relating to the AWT brings nothing to the table for your argument. Wisely, Sun chose a fitting name; the Abstract Windowing Toolkit, which describes the package's function. In the case of the LWJGL's current functionality, something like "The Lightweight Java Media and Graphics Toolkit" would be approprite. As far as I see it, the success or failure of this library to achieve far-reaching success for Java game development will be whether or not developers can be convinced it is the right tool for the job. If the name of the library is in any way misleading, it's going to be one more obstacle in the path of its acceptance.
edit: this is probably the last I'm going to contribute to the conversation, since I think I've made whatever point I'm trying to make
I'll let the more qualified ones take over