Being disappointed with the tech world's top apps lists, here are my top 5 server admin apps.

iStat - Sys Monitoring, Battery, $0.99

Not only does this app give the stats for your iPhone/iPod, by installing a small client on your Mac or Linux servers, you can get statistics on your servers. Setup servers by IP or by Bonjour using a pin # for security. As an added bonus, it includes ping and trace route features.

Server Admin Remote, $7.99

This is a great app for your 10.4, 10.5, 10.6 server management. This app allows you to control and see the status for services running on your OS X server. It also allows you to view log files and start and stop services. Combine this with a VPN to your office and it is a must-have for any Apple server admin on the go.

WinAdmin, $7.99

A great Microsoft RDP Client. Has the ability of having an address book of favorite servers.

Mocha VNC, $5.99

A great VNC client. Connect to Mac or PC VNC servers. Again, has the ability for an address book of servers.

TouchTerm SSH, $3.99

Get your shell on with TouchTerm SSH, perfect for *nix server administration.