Working in Pages '08, when I type a lower-case l, followed immediately by a slash /, I get this: ł.
In 2005, Apple Pages version 1 included Linotype Palatino with Apple TrueType spline glyph shapes and Apple Advanced Typography composition. The AAT composition had been created in an Apple tool available in the font software section of the Apple developer site.
The composition is not programmed correctly for ISO-IEC 10646-Universal Character Set compliance. In correct programming, LATIN SMALL LETTER L WITH STROKE is composed per the graphic in the standard, and a stylistic alternate is composed in the AAT MORX table (or OT GSUB table).
That is, Apple Advanced Typography and Microsoft OpenType make a distinction between preffered letter forms which are composed in the CMAP Character Map table and presentation letter forms which are composed in the AAT MORX or OT GSUB tables.
The graphic in ISO-IEC 10646 is not a glyph variant of LATIN SMALL LETTER L followed by SOLIDUS. If you are writing Polish, the programming is utter non-sense. The same programming has LATIN SMALL LETTER O followed by SOLIDUS as ø, which is bunkum if you are writing Danish or Norwegian.
Apple's idea was to supply mnemonic support for keyboarding non-English writing systems in the Latin script, so as in US English you say of ø that it is a composite of o and slash, you keyboard ø as a composite of o and slash. Arghhhhh ...
/hh