I have created a new application, Network Tools.
Basic idea of this app is periodic monitoring of websites, servers, routers, surveillance systems, etc. After a specified period of time the resource is checked, in case of failure user will get a warning. Such control will allow you to respond quickly to encountered problems.
You can add new resource to monitoring list, select the type and time interval between checks. At any time you can change the settings or manually check for a specific host. The corresponding commands are available on the context menu.
App contains additional tools: whois, ping and traceroute, for diagnosing network problems. For these commands there are implemented lists of previously entered addresses, so user does not need to retype them again.
Free, no ads.
Android Market link
You are welcome for feedback and comments.