YouTube and other video sites have truly changed the how-to business. So what do I mean by “how-to business?” I am talking about people who make a living off of teaching others what to do in certain situations and how to get things done. In fact, there is almost nothing you can’t learn by watching videos on YouTube. But sometimes, you just need that little tip on the go and don’t want to search through YouTube videos to find what you are looking for. That’s where How-To apps for iPhone come in. They teach you how to get things done on the go.

There are plenty of guide applications available for iPhone. There are so many that you can’t list them all here. But here are top 10 How-To apps that everyone can use:

1. vTie: I am not a big fan of ties, but if you are a business professional who can’t go anywhere without a tie, this app will teach you how to do all those complicated ties.

2. Knot Guide: lets you know how to do all kinds of knots right on your iPhone. You can search through knots by name too (82 of them).

3. Wine Ratings Guide: a comprehensive database of wine ratings that tells you everything you need to pick up a decent bottle of wine at your store.

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Wonder what it takes to watch lives NCAA games on your iPhone? CBS has finally decided to jump on the iPhone bandwagon and offer live video streaming for the iPhone platform. You are going to get NCAA Sweet 16, Elite 8, Final Four, and National Championships right on your iPod Touch and iPhone. And it will cost you less than a 5-dollar footlong

NCAA March Madness On Demand also features game recaps, bracket information, and latest headlines. So if you don’t have access to a Wi-Fi connection, you can always check the score and listen to live audio. But if you are on Wi-Fi, you are golden.

You’ll have access to On Demand feature till April 6th. That should give you plenty of chances to watch NCAA games live on your iPhone.

Here is a summary of what you get:

• Live Video Streaming on Wi-Fi
• Live Audio Streaming on 3G
• Video highlights
• NCAA brackets
• Live scores, headlines, and so on
• Edge Matchup previews

Overall, NCAA for iPhone does what it’s supposed to do. It gives you everything you need to watch live NCAA games and make knowledgeable statements about it all.

Your take: any specific NCAA picks? Discuss them here.

Not really talking about the movie (which I thought was so unfunny it turned funny in the end). I am talking about the coolest iPhone application for those of us who do not really have a sense of direction. I personally can’t find my car 95% of the time but now thanks to this cool iPhone application (G-Park), you can park you car, set the application, and then use it to get turn by turn direction to your car. I know. It sounds like a simple task to do but even Garmin touts their newest feature, “Where Am I” which is pretty much the same as what G-Park does. The difference? Garmin costs close to $500 and G-Park costs $0.99!

If you are planning to buy the new 3G iPhone for the sake of hacking and unlocking it, you might want to rethink your strategy. As we reported earlier, iPhone 3G will not be sold online. The main reason for this change of strategy on Apple’s part is to make sure people activate their phones. In fact, Apple doesn’t even allow you to leave the store without buying your service. Now, sources are reporting that Apple will penalize people who do not activate their phones within 30 days of their purchase.

Does this all mean that you cannot unlock the new iPhones? Not really. It’s just that it will be much more expensive to do so now. But hey. If you can unlock the phone and sell it for profit (after you take out the penalty fees and …) then maybe it’s worth doing this.

iPhone 2.0 hasn’t come out yet but you can’t stop rumors from going around the net. The latest rumor is that O2 is prepared to test waters with free iPhones to customers who sign up for their premium services. Now we really don’t care about the fact that you end up paying much more in total with these new plans, but the most important thing here is that you get the iPhone for free.