S4BB Limited let us know about the release of a new series of apps titled “Useful Numbers”. Inspired by the success of their Hong Kong Useful Numbers application for BlackBerry Smartphones, they’ve added 7 new cities to the collection. This would be useful if your planning to these places for holidays or work.

The full collection of “Useful Numbers” application are as follows:

• Beijing: BlackBerry App World™ | MobiHand
• Guangzhou: BlackBerry App World™ | MobiHand
• Los Angeles: BlackBerry App World™ | MobiHand
• Macau: BlackBerry App World™ | MobiHand
• San Fransisco: BlackBerry App World™ | MobiHand
• Shanghai: BlackBerry App World™ | MobiHand
• Shenzhen: BlackBerry App World™ | MobiHand
• Hong Kong: BlackBerry App World™ | MobiHand

Each application providesyou with an extended list of phone numbers in various categories like airlines, banking, hotels and more. Thanks to the integrated search function, finding a specific phone number is easy. Start typing and the number will show up. Useful Numbers are available for FREE.