After all the criticism that UMPC’s have gotten for poor batter life (hint, it’s not any worse than the average Dell laptop at a third of the size), the Wall Street Journal today has figured out that new features are being added to devices faster than the battery life to run them. Unfortunately, as the article points out, there’s no magic solution. Battery performance is improving about 10% a year. By performance they mean longer battery life in the same form factor or the same battery life in a smaller form factor.

Perhaps next time Mossberg gripes about battery life I’ll refer him to his own publication.

The full article requires a subscription but a snippet is available here.

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