I'm with the GP poster -while I probably would do the same thing in an acquihire situation, it does start to (somewhat) poison the well over time for newer startups.
While I love Path to bits - I have zero clue what their business model will be, and wonder what will happen to all my carefully journaled "moments" if Path gets acquhired sometime in the future. Somebody needs to come up with a good Diaspora like solution for personal journaling where _i_ control the data, and store it on something that is likely to be persistent (S3 is the only thing that I can think of that has a greater than 90% chance of being around in 10+ years. Dropbox, if they have good public offering, will likely be the second candidate)
I'd pay money for that - $10 for a Dropbox/S3 storage social network akin to what we get with Path today.