GT LinkFour Online

Now this app is part of all-in-one new app "Gold Thumb", which adds new features like offline playing and chat history saving and much more: 
http://appworld.blackberry.com/webstore/content/55993

This is Gold Thumb's online version of the classic strategy game Link Four. Simple to learn, tough to master--can you get four in a row? Play against real people around the world!  Once logon, you can play with a community of 2.5 million players all around the world. You can also chat with other players on the table.

GT LinkFour is one of the most downloaded game in App World! And it is free to download and play! Other popular free games we offer include: GT Blackjack, GT Roulette, GT Slots and GT Warship.

Top 10 winning rate is published on http://GoldThumb.com

When register for a new account, you get 2000 free chips.  Each morning normal users are replenished with up to 1000 free chips if their balance is lower than 1000.  GT Membership guarantees 3000 free chips replenishment.  

If you are unable to complete 3 rounds of play, most likely your device does not have a stable network connection. Please consult with your carrier for network settings for TCP connections. Note that network stability varies with location and time.

Gold Thumb: Where Finger Meets Finger