I totally dig my S5 Active.
I'm in the process of getting my environment set up so that i can learn to build for it. I've not done it before and it'll be slow going...but I've been reading these forums for a few years and I might just he able to pull it off.
If/when the bootloader gets unlocked...the sky will be the limit.
Galaxy S5 Activate
Galaxy S5 Active
Rooted, Safestrapped and other Tweaks
It's not as custom as I would like, but for now I'll take it.
Phone Graveyard: It all started with an LG CU500 3G, Motorola Razr (remember when they were the best thing out there?), Palm Treo 750 (Windows Mobile 6.1), iPhone 3GS, Dell Streak, hTc Inspire 4G, Galaxy S3