According to them, the browser will be released in June - but only in Japan for now. Dates for other regions are not known yet, apart from a rumor pointing to a December release in the US.It won't be a download, but instead will be sold as a regular DS cartridge, with a price of 3800 yen - about 32 dollars.

The DS browser uses an innovative scaling method to display websites - the touchscreen presents an overview of the site, while you can move a pink square over it with the stylus. The selected area gets fully displayed on the top screen.

If you aren't comfortable with that, a regular fit-to-width mode is also provided, working in the same way as the PSP browser.

source : http://ds.qj.net/DS-Web-Browser-Release-da...pg/49/aid/14052