Salesforce.com was so impressed by the Mayday customer support feature that Amazon.com rolled out for its Kindle Fire HDX tablets that it's now working to create its own version. Mayday allows HDX users who find themselves stumped to simply touch a button and be connected to a support representative via video chat. The upcoming Salesforce1 Service Cloud SOS provides an SDK (software development kit) that companies can use to embed a similar button into any native iOS or Android mobile application, said Larry Robinson, vice president of product management.