I know that Core Player is one of the best video players ever, so they launched a new version which is Symbian and Windows Mobile compatible but I didn’t know there be one for the iPhone. That sounds great!
Here’s what I found:
CorePlayer 1.2 for Windows Mobile was released last week, unfortunately without the new UI, [...]

This is a software that’ll make you forget that your phone even has a menu.
Here’s what it can do:

Open chosen application installed on the mobile
Open selected multimedia file or document
Call a certain recipient
Open selected contact from your contact book
Change Bluetooth status
Send SMS/MMS/eMail to selected recipient
Browse selected website

this application is for Symbian S60 3rd Edition smart-phones.
BT Guard is a security application that automatically switches your Bluetooth off. This saves your phone from BT attacks and unwanted Bluetooth connection requests. Version 2.0 released 25.02.2008: now respecting BT-Headset!
Here are the features of BT Guard. Got these from the Symbianguru homesite:

IT looks like there are Trojan viruses that can affect the proper function of our device and our personal information can be stolen. For those who don’t know how this virus works just read about the Trojan Horse and you’ll find out.
WinCE/InfoJack sends the infected device’s serial number, operating system and other information to the [...]

The new Sony Ericsson smart-phone running Windows Mobile is out. Not on the market but out to be seen so it will appear soon. Here are the features:
The XPERIA X1i is a touchscreen device that also has a Qwerty keyboard which slides out in an arc motion from under the large 3-inch VGA display. The [...]

I have been waiting for this software for a while now and now it’s out.
‘For those who don’t know, craigslist is a minimalist, worldwide network of sites each dedicated to classifieds within a city. Each one can help you find jobs, gigs, communities, housing, you name it, and now with Viigo you’ll be updated when [...]

Nowadays you have to sign the freeware you want to install on your smartphone, so where do you go? The answer is Symbian signed but why? There’s an interesting post I found with answers to your question.
With the latest S60 “3rd Edition” phones (such as the N95, N81 etc), Nokia in their infinite wisdom, has [...]

Zumobi is a web browser for Windows Mobile 5 and 6 smartphones. Significant improvements to speed, image rendering, and a roster of other back-end tweaks have made their mark with faster, less pixelated loading and zooming. Zumobi’s footprint is ever-shrinking, and the app can now live on the phone’s expansion card, whereas the beta was [...]

You can update your Desktop Software to the latest version but you will need the following:

An Internet/email-enabled computer
One available USB or serial port
The Microsoft Windows Operating System in one of these versions:

With a USB port: Windows 2000, Windows XP and Windows Vista™ including x64 bit support
With a serial port: Windows 2000, Windows XP and Windows [...]

I have already written about th Android software made by Google but I found a preview video about the actual OS and thought that you might be interested:
[youtube=http://www.youtube.com/watch?v=1FJHYqE0RDg&rel=1]