There is a missing line ending in bundler:
Using tapestry (0.0.0) from source code at /Users/stefan/Documents/Ruby Projects/tapestry Your bundle is complete! Use bundle show [gemname] to see where a bundled gem is installed.
bundle show [gemname]
The 'Your bundle is complete! ...' line appears directly after the last 'Using ...' line without a line break. Just thought you wanted to know. Should be an easy fix.
P.S. Thanks a lot for all your great work on Rails and JQuery. You've certainly made my life as a developer more enjoyable!