Dropbox updated its software to allow automatic uploading of photos and videos when you plug in a camera or smartphone via USB or insert a memory card into a USB reader on a computer with Dropbox installed. Adam Engst explained the features in depth last month. Dropbox increases free accounts from 2 GB to as much as 5 GB as you upload photos and videos. Version 1.4 is automatically installed on your computer to enable this feature. follow link
How to Make an iPhone Screenshot
Want to take a screenshot of something on your iPhone or iPod touch? Press the Home button and Power button briefly at the same time, and an image of your screen will be saved to the Photos app (and will sync with iPhoto when you next connect). Don't hold the buttons too long or your device will either power down or reboot.
Dropbox Enables Photo and Video Uploads