Reuters MarketClip is even more real-time. To entice you to buy their gear, some participating portable device vendors may absorb part of the subscription cost. Your broker may also offer such services. Prices will vary according to the type of service you subscribe to and the amount of money in your account. Some brokers offer these only to select clients, but others have made them available to most customers.
Some tools work only with selected services.
Blame that on business partnerships they've signed. But there are enough to offer you a viable choice. Stock info comes via Personalized Market Alerts from W-Trade . It's astounding, the variety of information that can now be beamed into your hands to make you a smarter investor. But there's no pager service to digitally transmit your daugther's ballet lessons.