I just wanted to mention a very nice app for the iphone: howcast,
It is basically a “How-to” video aggregator which has hit 500,000 downloads of its iPhone app and a quick spin of the service shows why – it’s fabulous. Just six months after launching, HowCast is already the second most popular free app in the Lifestyle category – behind the YellowPages and ahead of AAA Discounts. That’s pretty impressive.
HowCast was founded by a team of former Google and YouTube employees and raised $8 million in venture funding before it launched. The iPhone app is a great way to learn new things on the go and it’s a lot of fun.
There’s already an extensive HowCast community of video makers, Facebook Connect integration and an API. As we wrote in our original review of the app, it feels a little limited compared to the full website – but as an iPhone app it’s great.