I can see how on a slow connection (dialup,midband,slow broadband) this will speed up the connection, however on a decent-ish internet connection the compression will probably just offset the latency to peers. For web pages the only increase that may be noticeable is through its cache, and all modern web browsers have a cache built in making it redundant. As for the video cache, it implies you are reloading the same video over-and-over again, I seriously doubt it caches every video you watch and if it does that seems like a poor design choice.
Lastly it seems to go on the assumption that all peers have a large upload speed, so that multiple peers can match content coming from a CDN; whereas those who would likely benefit from a web accelerator probably have a minuscule upload speed.
Lastly it seems to go on the assumption that all peers have a large upload speed, so that multiple peers can match content coming from a CDN; whereas those who would likely benefit from a web accelerator probably have a minuscule upload speed.