I don’t normally repost journal article links here, but this one seems quite cool. I don’t have an Android device so I can’t test this.
J. Chem. Inf. Model., Just Accepted Manuscript
Atomdroid: A computational chemistry tool for mobile platforms
Jonas Feldt, Ricardo André Fernandes Mata, and Johannes M Dieterich
Publication Date (Web): 11 Mar 2012 (Article)
Mind you the “in press” version of the manuscript (which I cannot provide obviously for legal reasons but which if you have subscriber access the PDF is here) has heaps of bad formatting errors (maybe they used OpenOffice instead of Word ;))