I sent the messenger bag to Michelle in Minnesota and it appears to be a great fit for her needs. Of course I tried accommodating this from the beginning, but you just don't know until you try it out.
She was nice enough to even do a post about it on her new blog: Mom's Sippy Cup.
You can read the posting HERE.
And if this bag interests you, it is available HERE. Is it sold? Convo me for your own listing. :)