it's just another example of planned obsolescence.
They link the activation code to your serial number knowing full well that eventually you will get a new iPhone, either because yours breaks or a new one comes out.
This is just one example of nefarious business practices that goes on under everyone's nose and even if people do know about it they don't raise ethical questions because they've been trained that "it's just the way things are."
I wouldn't really use the Appstore as a solution though, because I'd say fewer than 1% of the apps on the app store have a free version that lets you try them out. Thus once you spend the money, the money is spent. If the app sucks, you're stuck.
What I've found in iBlacklist vs. MCleaner, at least iBlacklist will work forever with 2 entries, and the reply-sms features turned off. MCleaner only works for 15 days.
Just a note that to me the reply-sms feature seems like a carpe blanche for people to DoS you with texts knownig your phone will auto-reply. Not that you'll actually get a denial of service, but it's the same idea. Knowing a certain action will have a reaction and exploiting that reaction.
All in all from what I hear, iBlacklist is the best of all the filtering apps. The only thing I could ask for is keyword support, and the ability to use regex in the different criteria (phone #, keyword).
i use it to block ppl who send me chain texts. it's like.. oh well, if you send me chain texts.. you're blocked.. sorry, but i hate them. I'm not losing sleep over not being able to use keywords
