Haha, I just bought, like, white labels at the store last night, and manually labeled my keyboard myself.
I'm just learning Hangul now (for a few days). And, I'm sure the memorization would be a lot faster without the visual keys. But even learning the english keyboard, the keys were there in case you got lost, which I support putting hangul stickers (or a chart close). You can take them off when you're better.
I've been typing since I was, maybe 10, or 11 (I'm eighteen now), and sometimes I'll blank out and forget a letter and have to glance at the keyboard (not very good with the numbers still, never had much use to use the top number rows).
But, I think I can thank repetition for typing so efficiently, and I'm sure it'll soon be the same with typing with the hangul IME. Though, I mainly, I did get the stickers (white labels, and wrote the characters myself) to cover up the english lettering. Because I'd confuse the english letters with the romanized hangul (like, if I wanted ㅋ, I'd look for the K key, and not the Z key like it's assigned to). I've already memorized the english keyboard(due to repetition) so it's fine covering up the letters. But the actual hangul characters on the keys are much easier than looking at a chart on the side or something.
I'm sure I'll take them off sooner or later.
Uhm. So .. Question! I can sort of romanize hangul characters as I'm learning, but isn't it kind of a setback that I don't know korean to begin with? I mean children are first taught to speak before writing. Shouldn't it be the same when you learn another language?
Maybe I'm going about this the wrong way? Regardless, I'll try to memorize the hangul characters (still haven't memorized the complete alphabet/characters). Because, being in America, I guess it makes sense that you'd need to learn how to read Hangul first because how else are you going to read korean? Rarely do korean websites publish romanized characters.
*the stickers were all-purpose white labels 1/1" x 3/4", so they fit perfectly over the keys without me having to cut them
Also, there's this site, which sold hangul stickerkeys for like, .76cents, but I couldn't wait for the shipping, so I did them myself~ ;P