I think one thing you need to keep in mind is the Touch-to-Share feature which is included in the Pre3 and Touchpad. This feature is completely useless with only one of the devices released. So, there really seems to be 3 strategies HP could use here:
1. Release these 2 devices at the same time to promote this feature. Have ads showing the devices together, utilizing this feature.
2. Release the TouchPad first, and hope that consumers will buy the Pre3 afterwards so they can utilize their TouchPad to the fullest with the Touch-to-Share feature.
3. Release the Pre3 first, and hope that consumers will buy the TouchPad afterwards to utilize the Touch-to-Share feature.
I think the first option is the least likely. If the TouchPad is Priced at $499 (which sounds likely), I would think HP would be keen enough to realize that most users aren't going to go out and spend $499 on a tablet and spend $xxx on a smartphone at the same time. Most people don't blow that amount of cash at one time, especially not on toys.
That leaves us with the last two options. The last two options are really the same strategy. Use one device to promote the sales of another device. This is where it is splitting hairs. I have no idea which approach HP would go with. It completely depends on which device they think will be more successful at launch, and which device they want to be more successful at launch. Whichever device they predict to have "weaker" sales should be the device that comes second as they are sure to get at least a percentage of the sales from users who bough the related device.
If I had to make a guess (and that is all it is), I would say the Pre3 comes first. There is still a larger market for smartphones than there is for tablets. They are sure to get sales with the Pre3, and those sales would help to boost HPs push into the Tablet market. Once again, this is just a guess.
Of course, this is all based off of business marketing strategy and does not figure in technical details such as which device is more technically perfected.
Let me know what you guys think.