I will be applying to grad schools for ecology for fall 2012 and am trying to get some kind of a plan together before thesis work and classes consume all my time.
I worked on a couple of research projects with a professor (not at my undergrad university) this summer. It turned out great - we may get a publication or two out of this work in the next year. This professor will definitely be able to write me a strong LOR when I apply to grad schools next year.
At the same time, I am thinking of applying to his lab as a 'safe' choice - safe in that I know I can work well in his lab, with his grad students, and in the department, and I think he knows that too (he offered the same position to me for next summer, but I'm going to be tied up with thesis work at my own university). So I'd have a high chance of getting in and I know it would be a good fit, though I would also like to diversify my research experiences by looking elsewhere.
Would it be really weird/awkward to apply to his lab while also asking him to write me LORs to other programs?