PikaCRM Beta1 Releases。 It can run on these platform：

Ubuntu 10.04, 9.04
Windows XP, 7, Vista

It is 32-bit portable。

Please reference：

Overview
Tutorial(on writing)
 

The database file, PikaCRM.sqlite place in:

Windows: Data\ in the same directory with the executed file
Linux: in ~/.PikaCRM/Data/