Yes. And just to argument this, here is the relevant except of the FAQ:
Q: Is SPDY a replacement for HTTP?
A: No. SPDY replaces some parts of HTTP, but mostly augments it. At the highest level of the application layer, the request-response protocol remains the same. SPDY still uses HTTP methods, headers, and other semantics. But SPDY overrides other parts of the protocol, such as connection management and data transfer formats.
