RedGate's SQL Monitor 2.3 allows you to monitor your SQL Server performance from a website or a mobile device such as iPad or iPhone.
SQL Monitor is a web-based performance monitoring and alerting tool for SQL Server. Accessible from any computer or internet-enabled mobile device, SQL Monitor gives you the freedom to keep watch on your servers beyond the limits of your desktop.
Features include database health and performance, receive alerts via email and the UI as soon as problems arises, rewind time to identify the causes of problems fast.
It also allows you to generate reports with our SSRS Reporting Pack or the UI.
Pricing per license starting at $795.
Download a free trial here(http://www.red-gate.com/products/dba/sql-monitor/) and see it yourself.