Gives you natural attacks, racial bonus feats (which all of the feat-based menu abilities are, given that ACs don't have Int scores), flight, swimming speeds, and all the goodies such as natural armor and DR.
[edit] What about using the item alteration infusion to give yourself Luck, Competence, Insight, Dodge, and even Natural Armor bonuses to Intelligence via Tomes of Clear Thought?
Ah, the other direction. Still, you would not get the DR, considering that DR/magic is supernatural. Plus, without some method of circumvention, you'd only have one B or two A abilities at any one time.
As to your edit, well...hmm. I'd thought that there was a general rule against this, but perhaps not. It may be expensive without mitigation/cheese, but it sounds useful. Keep in mind that it can only grant certain bonus types, however; not all types can be applied to ability scores.
You still have circumstance, competence, enhancement, insight, luck, and morale for certain. Alchemical, racial, and size bonuses are in various locations along the Maybe Continuum.
I've still this nagging feeling that it doesn't work, but I can't think of why.