I have plenty of applications installed, but the ones I use most are:

• Twinkle – an awesome twitter client with seamless camera & geo-location integration 
• TuneWiki – song lyrics displayed while songs are playing
• Capture – taking screenshots has not be so easy
• iLog – a rich call log util (make sure also to install the Call History Patch to increase the number of entries)
• Snapture – a better camera applications with zooming, color adjustments and more
• iPark – I am terrible at remembering parking spots
• Hebrew fonts & keyboard (by Hebrew 4 iPhone) 
• Fring – both as an aggregate IM client but mainly for Voip calls over Wifi
• and lots of games that my kids love to tryout, including Tap Tap Revolution (Guitar Hero using your fingers)

In case you are interested in the complete list, you can find it below. Putting it together was simple. I used Capture to take screenshots of the “Uninstall” tab. This way you can see all the applications installed, including those that don’t create an icon on the dock. You can also see the category each application belongs to, so you can easily find them under the “Install” tab.

Feel free to recommend more using the comments section. Enjoy.

UPDATE (3/23/2009):

This method no longer works. Information about the new method can be found in this post.

Original post starts here:

Thanks to ziPhone and Hebrew BidiSupport, I like my iPhone (ver 1.1.3 1.1.4) again…

It is amazing how simple & quick this process was compared to what it used to be a few months ago. No need to downgrade/upgrade/use iBricker etc. With ziPhone all you need to do is plug your iPhone, check a few boxes (unlock/activate/jailbreak), run and after 3 minutes the process is over.

Once you are done with jailbreaking/unlocking, use the Installer to add a new source: http://repo.hebrew4iphone.com . Then refresh the list of sources and under the “Install” menu look for a new category called “Hebrew 4 iPhone”. Once you find it, install Bidi Support (1.1.3/1.1.4) and Hebrew Keyboard (which uses Russian keyboard).

After installing, restart your iPhone, select Settings>General>Keyboards>International Keyboard and turn on Russian keyboard.  Then, whenever you have the keyboard open, you can use the globe button (left to space bar) to toggle between English and Hebrew.

Big Thanks to iPhones.co.il