The equivalent of an extra 240 poker machines are part of the SkyCity casino deal, with gambling opponents warning they could lead to new addiction problems.

The Government's pokies for convention centre deal cannot bind future governments to compensate SkyCity if the deal is revoked, leading constitutional lawyer Stephen Franks says.

While SkyCity this month got the nod for its controversial $402 million Auckland convention centre, a Queenstown expansion proceeds almost entirely outside the spotlight.

New Zealanders are forecast to spend more on Lotto, casinos, racing and sports betting in the next three years.

SkyCity's rivals say its pokie machines will earn more if Auckland Council heeds calls for a regional sinking lid policy on gaming venues.

Some lucky person walked into a Florida supermarket over the past few days and bought a ticket worth an estimated $710m - the highest Powerball jackpot in history.

The Department of Internal Affairs has warned the Government that extra pokie machines at SkyCity risks increased harm to the community, Steven Joyce has confirmed.

The value of SkyCity Entertainment Group could get a $200 million boost after a $402 million deal announced yesterday.

Labour and the Greens have slammed a deal announced for a new convention centre in Auckland today, saying the Government has handed SkyCity a licence to print money.

SkyCity shares have jumped after details of a controversial convention centre deal with the Government were announced today.

Details of the controversial SkyCity convention centre deal with the Government have been announced, with the listed casino operator paying $402m for the new centre.

Conceived over dinner almost four years ago, the Government's $350 million pokies-for-a-national convention centre deal with SkyCity is to be signed over breakfast today.

Internet bookmaker Tom Waterhouse may walk away clean as a whistle from the tawdry inquiry into allegations that he passed on confidential information from his trainer mother Gai to punters.

A gambler who won a record $250,000 payout last month from the TAB after picking eight second-round NRL winners has done it again.

The Government has been urged to introduce facial-recognition technology for poker machines to restrict problem gamblers as part of an overhaul of gambling laws.

Nearly 100 kids were found wandering by themselves in SkyCity last year, a statistic which anti-gambling advocates say proves that problem-gambling is a growing issue.

Dozens of racing clubs in the south have been ordered to hand over files as part of a Serious Fraud Office probe into pokie grants.

More than 50 long-serving TAB workers look set to lose their jobs as the agency prepares to close its Auckland phone betting centre at Ellerslie.

Instant Kiwi scratchcards have played a key part in the "normalisation of the problem," the Gambling Foundation says.

A banned poker machine addict slipped through all SkyCity's safety systems to play his way to VIP status in the casino's high-roller room - blowing $500,000 in the process.

Sarah was losing her husband. It wasn't another woman who had slipped into her life. Instead, John was taken by SkyCity casino.