My love/hate relationship with my iPhone continues.
I think for functionality and performance, the Blackberry tends to win.  It’s a reliable email device, great battery performance, and overall work horse.  But let’s face it: the iPhone is one sexy MoFo with Apps to accessorize your every whim and desire.
One of the things that I sorely miss from my Blackberry is the Blackberry Instant Messenger function, or “BBIM”.  It allows Blackberry-to-Blackberry IM, without incurring any SMS charges.  I’d love to have a similar IM function between iPhones.
Enter the WhatsApp  FREEE iPhone App!  This is the official description:

“WhatsApp is an iPhone-2-iPhone messenger and a smarter Address Book for your Smartphone. Thanks to the status feature, you and your friends will always know what’s up and how to best get in touch. And now, with iPhone Push Notifications, WhatsApp can even let you know when your contact’s status changes and what they are up to.”

In Real Girl terms: a smarter, more intuitive form of a BBIM.

• Push Notifications for new IMs:  Simple. Stupid. Done.
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• Status updates: Similar to AOL IM, you can assign a “status” to your name.  It seems these days, everyone wants to get in on the Twitter phenomenon, so I’m noticing this “status” action across several different types of applications.
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• Integration with Address Book:
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Of course, the one catch is: other iPhone users must download the App in order to use it – unlike the BBIM, which comes standard on every device.
One WISH:  We’ll be able to use this application as an iPhone-to-iPhone-OR-Blackberry Messenger.    According to the WhatsApp people, it’s something they’re working on!
In the meantime, iPhone users rejoice!
Download WhatsApp here!
For more information about WhatsApp, click here.