If cs:s beta is coming LATE this summer , then i guess hl2 release will be fall :(

[Ninjer]

"Valve announced today that beta testing for the much-anticipated Counter-Strike: Source will commence later this summer."

if the beta is coming LATE summer , then i dont think hl2 will be released in the summer

'Later this summer' in this matter could mean "Within 2 weeks", doesn't necessarily mean it's coming out just in the end of summer
Also, Considering the summer ends September 21st i reckon it will ocme out soon