Apple has shown off the next version its software for iPhone and iPad, the biggest overhaul, the company says, since the iPhone launched.
Toddlers are becoming so addicted to iPads and smartphones that they require therapy, experts have warned.
A five-year-old boy has racked up a £1,700 bill in just a few minutes by unwittingly buying add-ons for a zombie game on his parents' iPad.
Apple has kicked off a product event at which the company is expected to introduce slimmer, faster iPads in time for the holidays.
The new tablets will face stiff competition, with Microsoft Corp, Nokia and Amazon.com Inc all plugging rival devices in coming months.
Apple, which jumpstarted the tablet computing market in 2010 with the first iPad, has already come under increasing pressure from cheaper devices from Amazon's Kindle Fire to Samsung Electronics Co Ltd's Note.
Technology giant Apple is expected to release a new iPad today but has kept tight-lipped about the details.
The iPad 5 and iPad mini 2 devices are thought to be due for an unveiling.
Experts say they expect the iPad mini 2 will contain a better camera and a retina display, and could trigger the customary pre-Christmas technology rush.
There are also suggestions it could feature a fingerprint scanner, similar to the one used on the iPhone 5S, launched last month.
The online games app industry has been warned by the Office of Fair Trading of "potentially unfair and aggressive commercial practices" that could target "susceptible" children to pay to continue playing 'free' web and app-based games.
Tesco is reportedly planning its own tablet computer this year to win back book and DVD sales from technology giants Apple and Amazon.
Priced at around £100 to compete with Amazon's Kindle Fire, the tablet is expected to come pre-loaded with content and apps including Tesco's new movie, music and e-book subscription service Blinkbox.
Tesco declined to comment on the report in the Times newspaper.
The supermarket has been looking to reinvigorate its business since annual profits fell for the first time in decades in April, while it was recently forced to scrap a high-profile expansion in the US.
The Office of Fair Trading has launched an investigation into games on phones and tablets that are free to download, but could end up costing parents hundreds - even thousands - of pounds.
It follows concerns that children could be tricked into spending money on upgrades without realising the cost.
Justin Cooke, from the British Interactive Media Association, told ITV News that the games industry did not need more regulation and that self-regulation was working.
"No doubt, there needs to be some changes to reflect the massive change going on in our industry," he said.
"Things like, for example, putting in place instant notification of payments being made through in-app."
"I think parents need to take some responsibility in the same way that I wouldn't give my kids the PIN number for my credit card," he added.
In March, a mother warned other parents about the dangers of free download games after her six-year-old daughter ran up a £900 bill on her iPad - without even needing her iTunes password.
Grace Walker from Cheshire was able to click and buy "virtual gems" to boost her performance in a My Little Pony game at £69.99 a time - running up a bill of over £900 in just 30 minutes.
Internet and mobile phone games which are free to download are being investigated by the Office of Fair Trading.
It follows concerns that children could be tricked into spending money on upgrades, Daybreak's Jonathan Swain reports.