If you are looking at buying a used iPhone or you just want to know how to tell the difference between an iPhone 3G and a 3GS, then this is how you do it.

My jailbroken and unlocked iPhone 3GS suddenly started acting weird yesterday. I thought my iOS got corrupted somehow, or it was time for me to upgrade to the latest iOS (currently running 4.0.1; been too busy to upgrade). But I did some research and found that one of the causes was a bad charger. Now a charger can be bad a few ways:

Do you have Gmail configured on your iPhone or iPod Touch, but you don’t get instant notification of your email like a Blackberry does? Do you want to know why? Then watch the video below, because not only do I explain why, but I walk you through the process, step by step, of how to set it up so you WILL get instant notification of your Gmail email on your iPhone or iPod Touch, just like your Blackberry buddies.

I just read Steve Pavlina’s blog post on overclocking your audio learning. It was a brilliant blog post about how you can listen to and comprehend any audio program very easily at double the speed. I found this very intriguing because I listen to a lot of audiobooks, and would love to double the amount of audiobooks that I listen to in the same amount of time, thereby doubling the amount of books that I “read.”

So, I gave it a try and LOVED it. Not because I loved the sound of it, but because I could take in the same amount of information in HALF the time! I’m all about being efficient and productive, and this little trick does just that.