18:40:05-bryanwoods4e@bryan-woodss-macbook-pro:~$ rvm use macruby
<i> Now using macruby nightly </i>

18:40:07-bryanwoods4e@bryan-woodss-macbook-pro:~$ ruby -v
MacRuby version 0.5 (ruby 1.9.0) [universal-darwin10.0, x86_64]

18:40:09-bryanwoods4e@bryan-woodss-macbook-pro:~$ gem list

*** LOCAL GEMS ***

rack (1.0.1)
sinatra (0.9.4)

18:40:22-bryanwoods4e@bryan-woodss-macbook-pro:~/desktop$ # This is just a standard "Hello World" Sinatra application
18:40:28-bryanwoods4e@bryan-woodss-macbook-pro:~/desktop$ ruby macrb_sinatra.rb
core:in `raise:': no such file to load -- sinatra (LoadError)