Communications giant AT&T has struck another blow against cable providers by announcing a new DSL offer that's rated for a maximum speed of 10Mbps. The new service will launch under the AT&T Yahoo! High Speed Internet Max moniker next month, and AT&T will offer it to subscribers of its U-Verse TV-over-IP service for $55 a month. AT&T says it will give subscribers of its DSL services free access to its Wi-Fi network, which counts 10,000 hot spots across the United States. Free, unlimited access will be available to anyone with an AT&T broadband service from the 1.5Mbps plan to the upcoming 10Mbps one.