Combining servers and other newbie questions!

Hi all! Just installed Subsonic on my Linux server and it seems to be working great, but I have some questions:
1. If I install Subsonic on a second server, can I combine the contents of both? So for instance, I'll be able to see both server on my iPhone via iSub?
2. On the home screen, can you show just videos or just music?
3. Surprised to see Subsonic supports video and it seems to stream MKVs very well to the net and my iPhone! Anything to look out for here in terms of format or size?
Many thanks
1. If I install Subsonic on a second server, can I combine the contents of both? So for instance, I'll be able to see both server on my iPhone via iSub?
2. On the home screen, can you show just videos or just music?
3. Surprised to see Subsonic supports video and it seems to stream MKVs very well to the net and my iPhone! Anything to look out for here in terms of format or size?
Many thanks
