Not sure where to report these, so I'll just dump it here.

This patch, (version 1.5.2-5, although that might be my phone) is maintained by "sconix"
It is dated 6/7/2010 5:25pm

The bug is:

When you add a menu page past four pages, and attempt to rename it using the rename button, using the backspace key ends the edit.

The workaround: Re-enter with, Launcher - App Launcher - Enter Edit Mode - Rename.

It seems when you go into it the second time, backspace works correctly. This bug did not occur when renaming any of the initial three pages, and I THINK not when I renamed the fourth, although I can't swear to that.

This would indicate to me that the bug is related to a reference to the default number of pages and an incremented variable being in the wrong place in a loop or code segment.