IE8, despite being much improved and evolved than its previous version has been completely overshadowed by the recent launch of Chrome.
Word of Caution : I strongly discourage any wannapreneur to even think of 'building a browser' as a startup idea because there are just too many options in the "browser market" already and interestingly, every new browser is setting a new standard in this "over-crowded" market.
Microsoft's latest installment IE8, and Google's first web browser, Chrome (download from here, if not done yet), being the latest two in this sector are grabbing all the limelight these days.
A browser is basically a "Gateway to Internet" to any web user and hence technology giants are right there, building simplified(for us,but complex for them) web browsers to gain/retain their market share in this unending "Browser War".
IE8,despite being much improved and evolved than its previous version has been completely overshadowed by the recent launch of Chrome