Opera has tried to make its mobile browser use up less of your cellular data for several years now, but today its beginning to release a tool with a bit more ambitious of a goal: to reduce data use from just about everything on your Android phone. Called Opera Max, the app is entering an open beta today (though you may have to wait in a Mailbox-style queue to get in), and Opera says it should be able to reduce your data use by up to 50 percent by compressing most text, images, and videos that you load. Opera Max works by routing all of your cellular internet traffic through Operas servers, which then compress the content and send it back down to your phone in a smaller package. In practice, Opera Max does a surprisingly good job of nearing its 50 percent reduction goal, though itll change dramatically based on what you do with your phone.