do you think you will have any API driven access to the data held in these services? IE, I don't per se want to have to use a worker to arbitrage between the Cloudflare platform and HTTP access to the data within Cloudflare systems.

Much like R2 has an S3 compat API as well as a way to retrieve files outside of workers (IIRC) will this be true of all forms of storage on the platform?

Sometimes it'd be nice to prime the cache with KV for example, without having to invoke a worker