Based on what I've heard on TWiT Network's This WEEK in Tech and MacBreak Weekly shows, here's my three-day "wild guess" on what we'll see on January 26, 2010:
1) We will have not one, but TWO different tablet computers, one with a 7" screen and one with a 10.1" screen. Both screens will be LED backlit (for now) to keep power consumption reasonably low.
2) The 7" version will offer 64 GB of flash memory, while the 10.1" version will offer 128 GB of flash memory. Mind you, if the next-generation flash memory is available by the time the tablet computers reach retailers in April 2010, we could get 128 GB for the 7" version and 256 GB or the 10" version.
3) The touchscreen could sport some soft of haptic touch feel--though the technology used is still unknown.
4) It will use improved versions of the CortexA8 ARM CPU and PowerVR GPU, using PA Semi technology that Apple owns because Apple bought out PA Semi. These improvements will speed up performance and allow for flawless playback of HD video downloaded through iTunes (720p plus full interactive LP liner notes).
5) It will run a new, "intermediate" MacOS X version that is more functional than the iPhone OS but less functional than MacOS X 10.6.2 found on real Mac computers. This new MacOS X variant allows for true multitasking and cut-and-paste, and will use an interface designed specifically for touchscreen functionality.
6) Will include 802.11b/g/n Wi-Fi wireless network connectivity as standard, with optional GSM 3G HSDPA/HSUPA / CDMA 3G EVDO multi-standard cellular network connectivity (probably using a Broadcom chipset).
7) External connectors will include iPod dock connector (for charging and syncing through USB 2.0 port) and Mini DisplayPort connector (with optional Mini DisplayPort to HDMI 1.3) adapter.
Pricing will be US$549 for 7" version, US$749 for 10.1" version.