In case you do not know, the collection of essays that Angel Gallego and Dennis Ott put together to celebrate the publication of Aspects 50 years ago is now out and available both from MITWPL and online here. I'd be interested in people's reactions to these. For what it is worth, I think that the papers reflect (surprise surprise) two different conceptions (or at least emphases) in the field. Oddly, (and need I add that this is my opinion) the Chomsky vision expressed so eloquently and provocatively in Chapter 1 seems absent (at least in any explicit form) from many of the papers in the volume. Aspects is one of the most eloquent expressions of the cognitive (and, hence the biological) conception of linguistics. And if it is true (which it is) that God is in the details, then it is equally true that details that fail to bear on the central cognitive questions (descriptive and explanatory adequacy) are not details of obvious relevance to the Aspects program. In other words, we should always be asking ourselves what a particular analysis contributes to our understanding of FL. We may not always know, but we should always be asking.
I hope to write a little more about this in coming posts. But please feel free to let say how this volume strikes you in the comments section and thanks to Angel and Dennis for putting in all that work. It is a good snapshot of where the filed currently is, I believe.