Basically.. from day 1: Ocarina was completely based on Gecko OS. If you had looked for Wii homebrew being able to start commercial games back then you would have found out that such homebrew didn't exist back then. Gecko Region Free or Gecko OS were the only applications capabale of doing so. Nuke handed me the sources of Gecko OS and then just the apploader was taken. All options removed and the behaviour was defaulted.
Thus:
-Ocarina boots games the same way like Gecko OS in default mode - that means:
--no VIDTV patch
--VI hook
--PAL50 for European games
--NTSC for US/Japanese games
Ocarina then adds the typical code handler by kenobi and Y.S. . This code handler is completely identical to that of Gecko OS 1.06c! Even if you boot a game with Ocarina and then fire up WiiRd - it will communicate via USB Gecko just fine. Simply because the complete WiiRd handler is inside - nothing was scrapped.
And the only difference of Ocarina: it reads the SD card and checks for codes. That's the only feature it has GeckoOS 1.06d- did not have. Other than that.. internally it's Gecko OS without interface and only default options. So those reports on "Ocarina can boot a game Gecko OS cannot boot" - that simply can't be if the applications are properly installed.. Ocarina and Gecko OS share the same apploader - Gecko OS just allows options. However: if you leave anything default, then Ocarina and Gecko OS boot games using the absolutely same way!
Nuke basically is focused on USB Gecko development.. and of course: Ocarina which technically aims at users without USB Gecko is going against that idea. Therefore Ocarina was out-sourced.. however, in the end, Ocarina made the USB Gecko also very popular and thus it didn't go against.. it helped it actually.
And therefore: Ocarina was included in Gecko OS. And additionally the only true Ocarina bug - locked SD cards - was also fixed. So even from day 1 Gecko OS 1.06f was superior to Ocarina even in Ocarina's main functionality.
And now ask me? Why should Ocarina be continued.. because the WiiRD code handler is still in works.. there are bugs:
-bugs (quite a few bugs btw. were fixed in Gecko OS 1.07)
-feature ideas (region-independent code types)
And that's simply something Ocarina couldn't keep track of. That would mean: whenever a new Gecko OS is released.. Ocarina would have to be updated too just to reflect the new changes in Gecko OS. And most of the time it would just mean: "Replace the code handler". The main Ocarina: is like 50 lines of C code. That's all.. Ocarina is just a little C code!
And this code has been completely adopted by Gecko OS. It is a few lines more now: for proper SD card unlock. However, other than that: Ocarina is in Gecko OS.
And that's why Gecko OS should take the place of Ocarina. It's the superior application.. and to all Ocarina users. Some things you might be interested in and why Gecko OS is really better:
- SD card is usable in games
- Ever played imports? Ocarina always uses the native color space of the games, however 90% of all working imports also happily run in YOUR preferred color space (for example Smash Bros Brawl US runs fine in PAL60 if deflicker is disabled)
- PAL users: don't you also prefer PAL60 over PAL50? I at least do.. and Ocarina always force boots PAL games in PAL50. Gecko OS allows you to use PAL60 - which works for 100% of all games.
- new code handler - fixes at several details (unfortunately this means: some old codes do not work, I know that myself.. that's basically because these codes relied on bugs.. however the bugs limited the functionality and didn't allow several things to work in the intended manner.. therefore.. parts were changed, breaking some old codes but allowing many new codes which would crash the old code handler)
- experienced games just not working with the standard VI hook? Well, Gecko OS allows two more: Wii Remote and GC Pad.. they sometimes fix non-working games
- rebooter mode: always wanted to play multi-dol games (Red Steel or masterpieces in Brawl) with cheats - Ocarina can't, Gecko OS with Rebooter can
And I hear "Oh but Gecko OS is so complicated, in Ocarina I just pressed A". Try that in Gecko OS.. do not press anything.. just press A. Oh! The game will start the same way as in Ocarina.. cheat codes on.. automatic color space.. VI hook. No change since the old one!
I hope I finally made the point clear: Ocarina still exists.. at least half of it.. Ocarina is basically: an application and 50 lines of C code. The application stopped existing.. the C code.. still exists! And if you have problems with Gecko OS which are cheating related.. we're here to help!
And it seems people do not know Gecko OS doesn't require the USB Gecko for cheating.. and as people can't read:

I still encourage anyone to get a USB Gecko - but if you just want to cheat you do not need it!