Internet-enabled gadgets may be popular, but they have little chance of achieving mass-market acceptance, according to Forrester.

Despite the popularity of connected mobile devices and the plethora of makes available, the analyst company predicts that they will not break into the mainstream.

The problem seems to be a lack of agreed standards and the failure of manufacturers to work together.

"Device makers Nokia, palmOne, and start-up Pepper Computer announced new devices in the past 10 days aimed at giving consumers access to information, communications and services on a small portable screen," said Forrester analyst Charles Golvin.

"All three products have built-in Wi-Fi, Bluetooth and a high-resolution touch screen, but each approaches the market a little differently.

"While Forrester applauds these efforts to create a new connected appliance market, none will go beyond a niche segment due to ill-defined use models, mismatches between users and what they require, and a general lack of partner support."

Also there is no clearly defined market for small internet terminals, which causes consumer confusion and makes third-party developers and partners reluctant to get involved, the analyst firm noted.