Clearing up the "Back to the Future" mis-information
There is meme going around that Doc Brown in the film "Back to the Future", was planning to travel forward to this day, before he got gunned down by the Libyans. It all started with this tweet by @totalfilm which is the official Twitter account of the Total Film magazine.
So what actually happened in the Film? Doc Brown is about to leave 1985 to go to the future, here's the quote:
"Marty: The future,? So where you going?
Doc: That's right, 25 years into the future. I've always dreamed on seeing the future, looking beyond my years, seeing the progress of mankind. I'll also be able to see who wins the next 25 World Series." (source)
Now, Back to the Future was first released in the USA on the 3rd of July 1985 and that's maybe where the confusion comes from. The current date as shown in the time machine is the 26 October 1985 so it's wrong. Total film did try to correct themselves, but, posting a photoshopped picture, was not the best way and attached tweet was unclear.
It's now 7 hours after the original tweet and people are still passing on this information in vast numbers:
Twitter is fast moving system and sometimes people make mistakes and I can understand that. Typically the way to resolve this is to send an updated message to all your followers admitting you made a mistake. The problem however, comes in when people start retweeting your incorrect tweet, you can't inform all those who received the incorrect tweet about the error. In fact it gets worse as people remove the original attribution and pass the tweet off as an original tweet of their own (as you can see it the screenshot above). Of course blogs don't have this problem, people simply update the post with new information as it comes to light. Facebook and Blogs also have comments so the post can be shouted down for inaccuracies there, even before the post is updated.
So is this a problem? Well today it's some tweet about meaningless facts from a 25 year old film, but tomorrow it could be mis-information about someone's death for example, though it's not like that hasn't happened before.
YouTube Hacked
It looks like someone calling themselves "SPONGE" on this page
It looks like they are deliberately using malformed HTML to get past YouTube's checks for HTML sanitisation in the comments. The comment I've seen is using the long forgotten marquee tag and a javascript alert, though in principle it could be expanded to support XSS type flaws.
It looks like YouTube are dealing with this currently be deleting comments presumably until the can fix their code.
I'd suggest staying away from YouTube until they have this fixed or at least logging out of YouTube if you use it.
iOS devices will and are disrupting the desktop space
In 2007 when Apple unveiled the original iPhone, I was quite surprised they had used OSX as the basis for the operating system. It was notable that they were able use a fully featured operating system on a mobile phone, something that wasn't being done widely at the time and marked the transition of mobile phones from simple devices to scaled down desktop computers. The iPhone OS as it was then known, seemed very basic given that it didn't support 3rd party applications, multi-tasking or copy and paste, however, it has quickly gained these features, this is one of the hallmarks of a disruptive technology:
"Disruptive innovation is a term used in business and technology literature to describe innovations that improve a product or service in ways that the market does not expect" - Wikipedia

