As I see in the code, File.createReadStream does not support arguments:

https://github.com/GoogleCloudPlatform/gcloud-node/blob/master/lib/storage/file.js#L229

Could it be possible for it to support options like the fs implementation, and particularly start and end? It would be very useful in ranged requests.