However, the Corallo Relay Network does support a sort of compression. Rather than transmitting all the transactions in a solved blocks, since most the other miners know about them already, it just transmits indices that refer to each transaction (sort of like a map for how the TXs fit in the block).
I think a more appropriate term for this would be encoding - using codes to represent larger blocks of information that is already known by all parties. This is usually way more effective than blind data compression.
if minner could communicate 100MB blocks with 250KB of encoded data, this is what will allow bitcoin to scale don't you think.
my guess is they wouldn't even need to send the full 64byte TX IDs only a 4 byte hash of the TX ID should be enoght for other minner to identify the TX's included in the new blocks.
using this method a miner could communicate a block with 250000 TX's!!! ( >400TPS ) with only 1MB of data