Well today I have got the first version of CLUMP (Client for LUMP) at a stage where I felt it was actually usable. Currently it only displays entries visible to the guest user. All the data is pulled into CLUMP using AJAX.
Here is what a sample reading list currently looks like.
Here is screen shot of an individual item entry of a reading list.
As you can see it is functional an not very graphical, though there is the book covers from Google books being displayed at the item level if it is available. I am sure that over time this will become much more aesthetically pleasing and start to look more like 2010 than 1995.