bro, no offense but i'm seriously having doubts on what you're high on when you're typing your piece of opinion. Let's just put your numbers into perspectives.
1 million write or erase cycles and have a ten-year data retention cycle, yes there's a lifespan for flashdrives I agree, however I would like to have the source where you pull those particular numbers from.
Furthermore, let's just
assume that if you are going to run blackra1n every other day during a period of 365 days per year. How many years do you need to just render your iphone flashdrive useless if we are taking account the numbers you allegedly said on your previous statement.
Furthermore, with the new bootrom, every restart will force you into restore mode, which is well apple way of showing the finger to the jailbreaking community, if you do not want any difficulties from jailbreaking, just don't jailbreak your phone. It is as simple as that.
One last thing, the read and write thingy doesn't even apply to your blackra1n theory, as blackra1n is just a tool to inject a certain package which would be just a few hundred kb tops via the exploit geohot had discovered. It doesn't even need you to restore, hence making your argument pretty baseless I must say.
Fellow old timers could chip in from what I've missed, but these are just my two cents worth of opinion.
Heck, even my mbp advertises it have 1000 life cycle for its battery, but i'm still charging it everyday as 1000 life cycle equals to three years worth of good battery life. So what do you think if we are to be conservative and just set your number you alleged to 1,000,000, to put it simply, do you even think that the phone will last you that long? Let's just say 10 years?
Just look back and tell me the evolution of telecommunication devices for the past decade (2001-2010). I still remember fondly my days in seconday school days where nokia 3310 and 8250 are gadgets only the sons and daughters of elites have.
Sorry to say but what you are trying to throw here are just pure bollocks man.