For Letts, Tab's screen size is small, but it won't affect his buying decision. Some other potential buyers agree with Letts, and are holding off to see how the market develops before buying a tablet.

Joel Morales, a software engineer from Fabens, Texas, held off on buying an iPad because he wanted features such as USB ports and Flash. He also believes the Tab's seven-inch screen is small, so he is willing to wait for tablets with larger screens. He's waiting to see if HTC delivers an Android tablet with a larger screen.

"I recently bought an HTC EVO and I'm impressed with the Android OS," Morales said. "I would be willing to wait till the end of the first quarter next year. If nothing comes out, then the Samsung Galaxy would be my option."

HTC has not yet officially announced a tablet.

David Milman, CEO of computer repair firm Rescuecom, said it's too early to buy a tablet, and prices of devices are high. But tablet usability has been figured out by Apple, and he might wait for the next-generation iPad.