Mavericks freezing

Apple announced that Mavericks is free. I regret upgrading to it. My Mac hangs quite often these days. Sometime twice or thrice a week. I was a happy using Snow leopard for last 2.5 years.
I moved out of using windows as it used to hang very often and used be very slow. I enjoyed my mac for a while and now having serious troubles.
I am desperately waiting for some updates from Apple with fix

Got Iphone

I had been trying to get an iPhone for the last 3 months. I tried buying at Apple stores and AT&T stores in the US, but none of them had any stock of the iPhone. Now finally, I procured one. I had been debating with my cousins who were biased by reading some blogs which said why iPhone was a bad buy. As per different blogs, iPhone features were far less when compared to other phones and they talked about the various drawbacks of iPhone. But for me iPhone is all about usability. No other phone can that I have seen so far can beat the user interface of an iPhone. Just use it to feel the difference. I can get scores of applications for iphone on the web too.
I am still enjoying playing with my new toy.