Is adding support for sharing files stored in Google Cloud Storage planned?

I have seen that there support for sharing files stored in Amazon S3 (GitHub - ipfs/go-ds-s3: An s3 datastore implementation).

Is something similar for Google Cloud Storage planned?

GCS is a cheap way to store files online, and in conjunction with their always free VM instances, it would be a cheap way to put IPFS nodes online.

If you made them public you could probably use urlstore.