If ASUS have thier Transformers tablet series with mobile dock, Lenovo have their IdeaTab. And it has a mobile dock too! As of now, you can buy it on US websites that are offering them for $343 for the no-dock option. If you want the dock, add $56 more, making it $399.
Lenovo IdeaTab S2110
|Lenovo IdeaTab S2110 Specification Table|
|10.1″ HD IPS LCD display @ 1280×800 pixels
Qualcomm APQ8060A Snapdragon 1.5GHz dual-core processor
16GB, 32GB and 64GB internal storage
WiFi 802.11 b/g/n
5MP rear camera
1.3MP front-facing camera
FM radio tuner
2 USB 2.0 ports (docking station)
optional 3G (and GPS)
optional keyboard dock
Android 4.0 (ICS) Ice Cream Sandwich
As of now, it is not yet available here in the Philippines. If you want one, you can buy it online or just ask your relative abroad.