Is BitStream's new Opera Mini-clone "Bolt" routinely 25-50% faster than any other mobile browser? That's what they keep claiming in their press releases:
In comprehensive speed testing of a variety of Web pages from different websites, BOLT was routinely 25 to 50 percent faster than the next fastest mobile browser.
BOLT is the fastest mobile browser currently available – routinely at least 25 to 50 percent faster than the next fastest
To be honest, I don't think speed tests like the ones above are a very useful basis for making general claims about browser speed. How fast the proxy browser is doesn't just depend on how optimized the servers and clients are, but also on your location in relation to the servers, traffic on the network, your connetion speed at any given time, and so on. All those speed tests really show is that that particular person got that particular result at that particular time under those particular circumstances.
"At least 25-50 percent faster than the next fastest"? Seriously, BitStream. Even if you had actual speed tests placing Bolt ahead of other browsers, that still wouldn't justify your claims. All you would be able to show is that it was faster for that person at that time.
Maybe it's time to adjust your PR claims a little?