2 in 1 HDD that is mixture of SSD & conventional drives mechanism.

[#1]

As large SSDs are expensive for PC users (especially large ones), I think there should be a 2in1 type of HDD.

For example in addition to normal mechanical architecture, there can be a 40GB SSD module embedded into it. This will help in getting faster boot-up / loading times (using SSD) as well as large capacity for storage (using conventional HDD).

• When these drives are installed there will be two physical partitions for user, one SSD & one HDD.
• It can be called DDD or DD Duo (Disk Drive Duo).
• The issues that will be important are cable interface & what if one of these malfunctions?

[#2]

Check out Silverstone's HDDBoost:

http://www.silverstonetek.com/product.php?pid=245&area=

Also, the Z68 chipset now supports SSD caching:

http://www.tomshardware.com/reviews/z68-express-lucidlogix-virtu-ssd-caching,2888.html

And, I believe Seagate's Momentus XT already does exactly what you've described

(but, I don't know if it's OK to mention Seagate products here;  Moderator, please advise):

http://www.seagate.com/www/en-us/products/laptops/laptop-hdd

Hope this helps.

MRFS