iPhone apps I really like... (not in any particular order) - but there are exactly 26 of them (A-Z).

I started this earlier but ran out of time to right notes about each one. You can figure them out probably quicker just by trying them or reading the online blurbs and reviews.

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A. Cinch http://www.cinchcast.com
It's more than just a voice-recorder for sending voice updates to Twitter or Facebook. It's more like a mini-podcast.
You can create a 'show' and then send voice recording (commentary on 'real-time' events or interviews or just your thoughts during a walk or drive). There are posted in the Cinch stream (as well as to Tw or FB if you like) like a series of mini podcasts (without going through iTunes).
I can see an educational application for this one -- especially for language learning and global exchanges between classes or individuals. It integrates with its own website http://www.cinchcast.com

It has easy sign-on (using your Facebook log-on or Twitter id).

B. ScribbleLive (also integrates iPhone app with website) http://www.scribblelive.com
This is a simultenous multi-user blog site that is great for keeping a live blog
with various users on different platforms / devices. You can write text, upload photos, and video, or post a live webcam. Viewers can participate by writing comments which can be moderated. The 'event' stream can also receive live Twitter updates from viewers / attendees, and bloggers.


C. Good Reader (Lite) --
Although you can only download 5 files at a time on the free version, it's still handy to be able to access your file on your Macbook or PC desktop. Moreover, the built in email server connection allows you to get files from Gmail, and other POP3 or IMAP servers. There's also a built in browser to let you download website pages for off-line reading. There a lot more too in the paid version

D. Knocking Live Video, and Knocking Live Pics

Show what's going on around you to a friend by 'knocking' them the video from your iPhone (It works of iPhone G3 and G3s). It's only a one-way show up, but you iphone becomes a portable webcam for a single user, the friend you have 'knocked.'
There is a separate paid app ($0.99) to be able to do similar with iPhone photo pics and albums.

E. Ustream Broadcaster http://www.ustream.tv

Broadcast video from your iPhone. It works on 3G, too - even where the 3Gs supposedly has the technical specs for video.
The video can be recorded and save to iPhone or uploaded to the your own upstream.tv video site. It integrates with Twitter, too.

There is a separately downloadable PC / Mac application called Ustream Producer.

F. iCatchall -- this is a sweet little suite of useful apps. Most of them do only one thing, but they work well. There are about 25 separate apps in the bundle that range from a simple File Storage (make your iphone a USB flash memory stick, Digital Clock (and alarm), Flashlight, Tip Calculator, Today's Moon Phase, Dice, Coin Flip, plus the silly ones like Flatuence.

G. Touch Meeting - allows you and 3 other to participate in an online meeting. Share files, show a presentation, chat by phone (there is a US call up number provided that allows for a conference call).


H. Glympse -- Give your friends and family a website live map that allows them to follow (glimpse) your whereabouts, and how you are progressing on your journey.

I. CoolIris -- similar to the same PC/Mac desktop application

J. Trip It - send it your travel confirmation (emails) and it will create an itinerary for your upcoming trips

K. Personal Assistant

L. Ebuddy / Palringo (Chat with friends across multiple instant messagers platforms)

M. Recall - Speak to your iPhone to keep your calendar and to-do lists.

N. Kindle (there are several alternates too), and also Audiobooks has a free library of books read to you by a human voice

O. PhotoShop Mobile

P. Evernote - integrates with a Mac downloadable applcation, and other assorted software.

Q. Dragon (voice dictation)

R. Printer Share

S. Pointer (control a Powerpoint on your Mac using your iphone as remote) , requires WiFi

T. gFlash+ (create flash cards in Google Docs to test your knowledge or learning/drill)

U. Facebook

V. Dropbox - online storage (virtual harddisk that works that accessible from Iphone, PC, Mac anywhere)

W. Skype

X. Truphone - similar to Skype except it works on 3G networks (when you don't have acces to Wifi). Cheap Intl calls.

Y. Brightkite / Twitxr

Z . Echofon - nice Twitter client that works on iphone and integrates into Firefox brower