Shops won't have a decent supply of PS4 consoles for at least another month, according to the boss of PlayStation UK.
Microsoft's Surface Pro 2 and Surface 2 are chronically in short supply. Is this because the new tablets are flying off the shelves or just not reaching the shelves?
How long will it be before supply actually meets demand? Analyst Gene Munster looks into his crystal ball.
Good supply chain analysts offer speculation based on the best available data.
In its initial weekend on sale, the iPhone 5S had "real demand" of 6 million units, according to estimates from a Morgan Stanley analyst.
Supply of the iPad Mini Retina appears to be easing significantly, as cellular models become more readily available at Verizon and AT&T.
Supply of the 5S reached 100 percent of stock last week, according to Apple retail store checks by analyst Gene Munster.
Apple increased its orders of iPad Minis in November after clearing some bottlenecks in production, report says.
While it's known the iPad Mini with Retina Display won't be in plentiful supply, the shortages may be more than Apple bargained for, according to a Nikkei report.
Available stock of Apple's top-of-the-line iPhone has tightened over the past three weeks, says analyst Gene Munster.