Casino executives from around the world — there were about 30,000 at the Las Vegas Convention Center last week — strolled through the aisles, stopping to press max-bet buttons and hit a flashy bonus round on a machine that still had a new-plastic smell.

Some of the new products have not received regulatory approval in Nevada or elsewhere, and others are just reaching casinos.

Wireless gaming, for instance, is allowed in Nevada in public areas such as a bar or a pool but not in hotel rooms. The exhibition showed devices as big as a notebook to as small as a handheld organizer.

Progressive Gaming salesmen said they expect to transform neighborhood bars in Nevada — the only state that allows sports betting — with a wireless device that lets a player make small wagers on dozens of outcomes in a game. "Rapid Bet Live," already in a testing phase at the Palms, offers a football game bettor 170 wager opportunities, such as the result of a coach's challenge.

The Las Vegas company plans to move those devices into sports bars, replacing older kiosks from the company that allowed gamblers to bet only on the outcome of a game.

"Nevada is a huge market," said Tim Richards, the company's vice president of global marketing. "We're also working with Canadian provinces and international markets like Asia, Europe and Australia."

Attendees walk the floor at the Global Gaming Expo. Sam Morris

Also at the Progressive Gaming section was a product not yet approved, dubbed the "World Series of Poker Peer-to-Peer Edition." The product — which is available on a wireless device — showed an interface similar to ones seen on the online poker sites that the U.S. government is cracking down on.

"This is a little more anonymous," Richards said.

Saving space was also one of the main selling points for the wireless devices. At ShuffleMaster, the wireless systems are meant to save space from the "large footprint" that a traditional table would take, said Kristen Clark, director of marketing for the Las Vegas company.

ShuffleMaster's show was significant in that the company unveiled a broad line of products, from its latest shuffler to two new versions of its "Rapid" table games.

Rapid Baccarat and Rapid Craps are the new ones, joining Rapid Roulette that launched in 1997 in Australia and was followed by Rapid Sic Bo and Rapid Big Wheel. The system allows players to sit around a table, but to play on a monitor instead of with dice, chips or cards. Plays move faster, and new players can easily get help screens and make small wagers, Clark explained.

Among the hottest and most-promoted trends were the multiplayer slot machines promoted by WMS Gaming of Las Vegas. "Monopoly Big Event" lets a player trigger a bonus round for a whole row.

The concept was the product of three years of research and development, and it has "plenty of patents," said Phil B. Gelber of the company.

"Whatever outcome happens, everyone wins together," he said. "It's kind of like a hot craps table."

The Monopoly brand is the company's crown jewel brand, he said.

Of course, many manufacturers were showing off branded products. WMS Gaming had a series of new Monopoly games, some of which showed off a new design called "transmissive reels" — a mechanical series of slot reels with a transparent video screen over them.

Another brand, "Top Gun," looked like a video arcade flight simulator and featured Bose surround sound. The "Danger Zone" theme song was licensed, as was the logo and all characters except Tom Cruise.

Bally Technologies had a new license on a familiar brand, too. Vintage video games from Atari are expected to roll off the lines: Pong was out at the show, and it may soon be followed by Breakout, Centipede and Asteroids.

"You want a title that has an emotional connection to the audience," said Mickey Roemer of Bally.