+* support installation of new ISO[s] additionally to already existing grml ISOs on the usb device
+ -> add "old"/already existing images automatically to bootloader configuration [thx gebi]
+* write bootloader configuration snippets to boot/releases/<release>/{grub.cfg,syslinux.cfg,...}
+ -> this could simplify live dramatically especially when supporting "already existing" images [thx gebi]
+* provide simple output being between default and --quiet [thx gebi], like:
+ # grml2usb iso1 iso2 /dev/sda1
+ installing:
+ iso1.... OK
+ iso2.... FAIL (error)
+ done.
+* support installation of live running grml system (/live/image as grml-iso)
+* provide default entry of all installed ISOs on the top of the bootscreen (in grub's config)