I would agree Omni's software is the one thing that one might miss moving from MacOS to Linux.
For me, I miss OmniGraffle and also OmniPlan. OmniGraffle lets one make nicer-looking drawings more quickly than anything on Linux that I've seen (xfig, ImageMagick & co.), and OmniGraffle is a slick and much simplear and cleaner project management software than e.g. MS Project and even Merlin.
(For the record, I never "moved" from MacOS to Linux, but I've been using Macs on and off at work as secondary machines in parallel to Slackware Linux, SuSe Linux, Red Hat Linux and eventually the Ubuntu LTS Linux of the day).
For me, I miss OmniGraffle and also OmniPlan. OmniGraffle lets one make nicer-looking drawings more quickly than anything on Linux that I've seen (xfig, ImageMagick & co.), and OmniGraffle is a slick and much simplear and cleaner project management software than e.g. MS Project and even Merlin.
(For the record, I never "moved" from MacOS to Linux, but I've been using Macs on and off at work as secondary machines in parallel to Slackware Linux, SuSe Linux, Red Hat Linux and eventually the Ubuntu LTS Linux of the day).