Still Hot...or Not? Technology Firms Face Faster Product Cycles

Tablet sales showed their first sequential decline ever in the second quarter of this year, according to research firm IDC. Apple sold fewer iPads than expected in its most recent quarter. Barnes & Noble's Nook e-reader sales fell 20% in the fiscal first quarter ended August 20, two months after the company announced it will no longer make color versions of Nook, only black and white ones. And analysts are worrying about whether smartphone profit margins can hold up as buyer fatigue sets in.