Can any of you tech folks give me your opinion about when USB 3.0 may be in more widespread use?

In looking at new computers, it seems to be in very limited use, only high end laptops. I am a fan of Lenovo desktops (not having the skills to build my own frown ). A quick check of their website did not turn up this option.

Going forward, an external hard drive with USB 3.0 seems very appealing.


Donna