There has been a lot of buzz on the new sleek looking oval shaped USB modem promoted by Celcom and Maxis. Both had the modem re-branded according to the operator. The modem is actually by Huawei, China based telecommunication vendor.
I managed to get a sampler from Huawei to test over the weekends.
The packaging is as shown below :

The package includes :
a) the modem
b) USB cable
c) a quick guide

Starting off, I added the SIM card and connected the USB to my notebook USB port. The device was easily detected and in addition to the modem, it also has an in-built memory on device that houses the software and necessary drivers. Installation was swift and without any issues.
For the re-branded version, the device is preconfigured for the needed access point and other details, as this is off the shelf... it took me less than three minutes to have it configured.. breezy...
Once connected, the modem will glow in different colors according to the connection type. I got green for HSDPA.

After about 20 minutes of usage, the modem tend to get hot. And at about 45 mins (along with some heavy internet usage), the device got cut-off and I have to re-connect to the service.
This is the snapshot of the User Interface Application for the modem :

To conclude;
Pros :
a) very easy to install and use. The software and drivers are in the device itself, so no tendency of losing the installation disc that is so commonly occuring to the myriad of devices one would have
b) Its compatible to EDGE, 3G, HSDPA
c) convenient to carry around
Cons :
a) Price
b) it heats up
c) Regardless of what capacity of bandwith it is capable of, the limitation is the USB capability. Version 1.1 will limit it to just 2 Mbps. Its not like an LAN cable or RJ-45
I may consider purchase of this, but not my prime choice. It does look good aesthetically, but functionally... there are some drawbacks.