Now that we have lots of iPhones at work, it was time to start testing our data plans with download speeds.
Now that this technology is available, I am finding that I am using my phone for more day to day internet. I have all my emails in my pocket as well as doing my mapping and browsing.
With four different networks availabe, the results were quite different. Sadly mine (the second one) is the slowest, and I can feel that with the day to day browsing that I do.

Looking at the results history of a few different tries you can start to see the averages coming out.
The first tests are at the bottom and the last tests at the top.
Firstly Telstra. The fifth line onwards are all "wireless" connections, so ignore them.
The Telstra phone did start out OK with 758, but we were expecting it to be higher. It seemed to be jumping up and down from test to test.
Once we took the protective plastic case off the iPhone, the speed jumped up considerably to a top speed of 1160. But still, the next test was again low at 583.
Vodafone started poor and finished poor with a top speed of 409. It has never run a good test, but the uploads were the fastest. Maybe we should set that one up as an Internet server.
(Editors Pick) Optus was the big performer of both this day, and a previous test that we had done. With a top speed of 3228, it is way above the competition. You can just feel the difference when you use any internet software like browsing and maps. The last slow figure of 1253 is actually "wireless".
The 3 network is the newest kid on the block. This new contender gave us mixed results starting out very well with a top speed of 1638. The slower figures in the middle can be ignored as the phone was downloading software updates at that time. The final result of 895 again showed this network did have the capability of good download speeds.
Summary:
I have had Vodafone tested on an Android as well, and again the performance was poor.
From our test results Optus is the clear winner for speed. Upon picking a network, speed is not the only criteria you should base it on. Also look at coverage, price and contracts among other things.
Update:
I now have the results for the Android in...
The Android, that is also on Vodafone, gave a similiar result as the iPhone Vodafone when test a fortnight ago, from (most likely) the same cell tower.
New results show that it is going even slower when doing more tests in different areas.

At a top speed of 197 on Vodafone, the Android came in after the race was over. The top value is from Brisbane, while the bottom figure is from Canberra. Slow and slower.