That's a lot of apps there Humayun!
I have a few as well but these are the ones I use most:
- Quota - Let's you monitor various usages ie ISP, Phone, Tolls, etc.
- ABC - News site.
- Weather - This one comes with the iPhone.
- BomRadar - (Written by a good friend of mine).
- eBay
- Facebook
- NASA
- Battery - monitors battery usage.
- Forums - Let's you view forum based websites, like IIS and Whirlpool.
- Snarl Traffic - View traffic reports and RTA cameras.
- iSSH - SSH client, useful for me to log into my work servers.
- FlowChat - IRC client.
- ST.George & Westpac - iPhone banking apps.
- Foxtel Guide - Great for setting up your IQ/IQ2 on the go.
- SoundHound - I prefer it over Shazam, but Shazam is just as good.
- mSecure - a password safe for your important stuff, can be synced with your computer.
- FlashFiles - Allows you to share files between the iPhone and your computer.
- NoteTaker - Write freehand notes.
- Level - Spirit level.
- PCalc - A really useful scientific calculator, great for programmers.
- Armory - A World of Warcraft app *go the addiction!*
- Dicenomicon - An electronic dice app for when playing D&D.
As for astronomy apps, I have:
- Compass - iPhone compass.
- SkyVoyager
- Starmap Pro
- pUniverse
- Planets
- iMoon
- Moon Atlas
- Mars Atlas
The only game I have is a port of Dragon's Lair.
Not all those apps are free, especially the astronomy ones.