I personally haven't looked super closely at ADK. But I would love if someone more knowledgeable could do a sort of comparison. I imagine there are a lot of similar/shared ideas!

There are dozens if not 100s of agent frameworks in use today, 1000s if you peruse /new. I'm curious what features will make for longevity. One thing about ADK is that it comes in four languages (Py, TS, Go, Java; so far), which means understanding can transfer over/between teams in larger orgs, and they can share the same backing services (like the db to persist sessions).