There are a few advantages on using a SSD version: lower consumption, and no moving parts (good on a laptop which is usually prone to unhealthy shakes).
But there are disadvantages as well: limited storage space, and performance.
Solid-state drive on Wikipedia
Yet, the Acer Aspire One SSD provides a Storage Expansion slot. This Storage Expansion slot will allow you to mitigate these disadvantages. By using a fast SD HC memory card on this slot, you can increase your available storage space, and increase performance, by carefully choosing a "disk" partitioning scheme.
For this purpose I'm using a SanDisk 8GiB SDHC Extreme III (30MB/s Class 6) on the Storage Expansion slot.
I'll let you know how I implemented my partitioning scheme, but you should choose your own scheme to fit your own needs.
On the SSD:
210 MiB for boot.
7.9 GiB as LVM2 mounting:
"/" on an Ext4 file system.
On the SDHC:
1.1 GiB for Swap.
7.1 GiB as LVM2 mounting:
"/home" on an Ext4 file system.
"/var" on an Ext4 file system.
"/tmp" on an Ext4 file system.
Be aware:
The SDHC should be faster than the SSD (particularly at writing speeds).
The mounting points with frequent writes should be on the SDHC card.
Swap should not be on the SSD.
/tmp should not be on the SSD.
If I'm not mistaken, Fedora 10 had no out of the box support for the Storage Expansion slot and, therefore, was painfully slow on the SSD version. I find the Fedora 11 to perform exceptionally well on the Acer Aspire One 8GiB SSD version (even being the first - and slower - SSD version).