Wyse Technology Inc. today released a laptop thin client that has no disk drive or fan, a relatively long battery life and a full-size keyboard. The device also supports multimedia and runs silently. It’s intended for business use, but analysts said it’s the type of device that may be a forerunner of future notebook computers.

The environments where many workers are using similar applications. But acceptance by consumers and knowledge workers of thin-client notebooks may expand as wireless networks improve and as Google Inc., Microsoft Corp. and others develop online application services.

“All the things that were really necessary are only now reaching a level of adoption that can justify devices depending on them, but it’s still a hard sell,” said Bob O’Donnell, an analyst at IDC.

The thin-client notebooks have a lot of advantages in terms of security and durability. It may be no more difficult to replace a damaged thin-client notebook than it is to replace a TV set. Thin-client notebooks “may make all the sense in the world from a logical perspective,” O’Donnell said, but IT decisions aren’t always based on logic. He also noted that there may be resistance from a PC-focused IT staff, as well as from corporate knowledge workers.

Jeff McNaught, chief marketing officer at San Jose-based Wyse, said these devices are becoming alternatives for the most demanding group of employees, the knowledge workers. And the company’s interest in supplying a product for the consumer market may grow “as we find ways to make these devices even smaller and easier to use,” he said.

Notebook thin clients make up a small amount of the overall thin-client market, and these products are just emerging.