Astromist 3.4 Pocket PC Installation instruction:

1) PRE-REQUISITES
Windows Mobile 2003 or greater, 
12Mb of free RAM and 256Mb available on a memory card, 
240x320 up to 480x640 resolution portrait or landscape supported, 
Best devices: 240x320 PDA with 200MHZ CPU or greater, 480x640 PDA with 300MHZ CPU or greater. 

2)INSTALLATION
Please refer to the registration mail or see online documentation available on www.astromist.com.
For a small upgrade (from 3.4 to 3.4.1) only replace the .exe