Many people who travel a lot want to have access to the Internet and to their computer at all times. Generally speaking, the opinion of people is that laptops are the best solution in this case, because they do not weight a lot and they have rechargeable batteries. However, laptops are not the only solution. As a matter of fact, Personal Data Assistants (PDA) have many useful features. The best thing about them is that they weight very little and take little space. Some might argue that since PDAs lack a keyboard, it would not be efficient to type on them. What if I told you that you could use a projected keyboard? There are many devices like this, and most of them require wireless Bluetooth technology. Basically, such projected keyboards can be connected to a PDA, or even a regular computer. These keyboards have even simulated key click sounds and the typing speed can be comparable to regular keyboards. Of course, it might take some time to get used to a projected keyboard, but once that is done the typing speed can be really fast. I believe that projected keyboards make PDAs a perfect device for those who travel a lot.