Here are some notes/specs on my T40 (237394U - Centrino)
I ordered it on the 21st from IBM and it shipped on the 29th, i recieved it on the 2nd of May. They told me when I purchased the laptop that I would not recieve it untill the 19th of May; I was pleasently surprised to recieve it on the 2nd.
Specifications:
Model#: 2373-94U (Centrino - Intel 802.11b Wireless Card/Pentium M CPU/ Intel 855 Chipset)
CPU: P-M 1.6GHz
RAM: 512MB DDR RAM
Harddrive: 80GB, 4200RPM HD
Screen: 14.1" SXGA+ LCD
Video Card: 32MB ATI Radeon Mobility 9000
Media: 16x10x24/8X CD-RW/DVD
Modem: Integrated Bluetooth+Modem
Ethernet: 10/100/1000 (yes, Gigabit) Ethernet
Wireless: Intel® PRO/Wireless 2100 network connection (802.11b)
9-cell battery
IBM Embedded Security Subsystem 2.0
IBM Security Slot
WinXP Pro
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Impressions:
1. Heat/Battery - I have used this laptop a lot for a paper I have been finishing, while in my lap. It gets a little warm, but it is nothing of special notice that will affect you (4 hours in my lap). I used the laptop till it was dead on Word processing battery mode and it lasted over 6.5 hours.
2. Weight - This thing is amazingly light. My friend has a Sager one (like the alienware 51-M) and the T40 is SO MUCH LIGHTER and easier to move around with. I have carried it around campus all day and it was really nice.
3. Wireless - I had some problems getting the wireless to work at first, but only cause i was incompetent and couldnt figure out how to set it up. After i got it set up, it was really fast and nice (802.11b protocol).
4. Build - This laptop definitely feels nice and sturdy compared to all other brands. It feels like you're carrying around something that was built to be thrown around (Like LittleLouie does). The LCD is really sturdy and does not ripple at all. I have shaken the table and it doesnt, I have also pushed hard on the back of it. When i push really hard it does, but that's because i am pushing really hard. The keyboard and ultraNav are really sweet. I like how the keys feel and the flexibility of the pad and the little red track ball.
5. DVD Playing - This thing is amazing with DVD movies, it plays so nice and is really smooth. It is absolutely flawless.
6. Sound - Pretty normal for a laptop, nothing annoying and nothing amazing. I'm thinking about buying and Extigy for my desk so i can have nice sound when I'm docking.
7. Software Included - Windows XP is a nice addition, and I will soon install a linux partition when I get the chance. The IBM software is a nice touch and is a fairly easy interface to use when trying to get around your laptop. I like how IBM includes very little software.
8. Carrying Case - I got a Brenthaven topload case. This case is really nice.
Summary: This is a really nice laptop. Everything about it is amazing from build to included package.