I am a geek & IT support worker who has been in the industry for 15 years or so and have had a passion for IT systems for most of my life. I grew up in the days of modems and BBSs, where the exchange of data was not known about by most, let alone monitored by governments. I've seen the internet change very much, but have also seen a lot stay the same.

My first thought about filtering any sort of network is that if you are smart enough, or know someone smart enough, it will never be effective at stopping you from getting what you want. Some of the first filtering systems put in place by parents on home computers were so ineffective that children and teenagers bypassed them without the parent's knowledge within minutes of them being installed. It's no secret that any sort of filtering requires massive amounts of time and energy to just keep blacklists up to date.

Filters, by their very nature offer opportunities to test one's own abilities to bypass them. When I worked for a large telco we did this all the time, the network was very locked down, but we still managed to get through the filter. How? Well, that's another story. Restricting any group of people will just serve to drive illicit activities further underground, and believe me, there are more ways to hide your activities than basic website proxies. The arsenal available to people who wish to conduct themselves illegally is amazingly large. From VPNs (Virtual Private Networks), to encrypted messaging, to encrypted file sharing systems, they all allow anonymous and secure communication.

"Why would this be a problem?" you may ask. Well, if traffic is not encrypted it makes it much easier for law enforcement personnel to actually provide evidence of illegal activities. When information is encrypted, all you can see is where the connection originated from and where it is attempting to connect to. This is made even more difficult by people using VPNs. All you can see is two legitimate connections, no suspicious activity is observed at all.

This brings me to another problem I see with this debate, that there is an assumption that no legitimate activity will be disrupted by the filter. Understanding how filters work, having administered quite a few in my time, I can assure you that EVERYONE will be affected by this. No matter if you're only using social media, or just checking emails, you will not be able to escape the grip of internet filtering. Networks are complex beasts and adding any sort of checking will consume more and more processing power to the tiered routers that connect different networks to each other. The more processing power used, the longer it will take for data to move. There are wide reports that the internet in countries such as China and Iran, that observe massive filtering, is unbelievably slow. No matter how fast the end users' connections are, you will be impacted. A general rule of networking is that the speed of a network is governed by the slowest point on the network, which will be the filtering system essentially.

This will almost definitely have an impact on ISPs (Internet Service Providers) ability to deliver fast, cheap internet to the end user. More staff and more expensive equipment will only serve to raise prices of your connection. There has been no discussion of how users or ISPs will be compensated for such a situation. It seems that Stephen Conroy has not even put any thought into this at all, and judging by his comments on the filter and other technology, I doubt he even understands the full technological implications of filtering.

To have such an ignorant plan that is being decried by such a large proportion of technology companies and experts leads me to believe that the filter is purely just pandering to the Australian Christian Lobby.

While I have a lot more to say on the subject, I think I'll leave it there. To summarise:

Benjamin Franklin said it best:

ut the iPhone 4's proximity sensors not working as intended (link).

So, I set off using redsn0w's jailbreak. It was quite simple to do and seems to have had no lasting ill effects on my iPhone. I now have multitasking (runs fine, so Apple was telling porky pies) and backgrounds (again, porky pies on Apple's part).

My theory on the whole restrictions of the iOS4 update is to ensure the sales of the iPhone 4 are inflated by people rushing out to get the features they can't have on their 2 year old phone. I know that my next phone will not be an Apple phone unless they smarten up their act. Apple has moved from the nice guys to Microsoft's evil twin. Steve Jobs makes Steve Balmer look like a mild mannered marketer by comparison these days.

All in all, if you have an iPhone 3G and were going to upgrade your phone to an iPhone 4 for iOS4 features, consider a Jailbreak. Your phone will be out of warranty, so no harm there, and your iTunes sync/apps/etc all works with the Jailbroken phone. If Apple wants to play this game, we can all chip in and play it better than them.