The "L" puzzle hint was answered on Yahoo! Answers:
"Yahoo! Answers - Are there hints on how to solve the "L" puzzle in the Blackberry game KaGlom by Magmic?"

Here is a solution for "Asterisk" in the "Keyboard" set:

1. Red block horizontal to far left on red block, blue glom on blue glom
2. Yellow block horizontal to far right on yellow block, black glom on blue glom
3. Yellow block horizontal to far right on yellow block, blue glom on black glom (directly on top of the previous piece)
4. Red block horizontal to far left on red block, black glom on blue glom (directly on top of the first piece)
5. Two green gloms go straight down the middle vertically
6. Vertically straight down the middle again, green glom to green glom
7. Bomb the blue
8. Change yellow blocks to red
9. Black block straight down vertically, with black glom on top of it - do not destroy black here!
10. Switch the red blocks to gloms

Blacks will fall into place - you're done!

Also, here is a solution for "7":

1. Drill the far right column
2. Drop the next two pieces, all blue blocks, vertically in the now empty
   far right column
3. Color change the blue to yellow
4. Switch the yellow blocks to gloms

You're done - everything falls in!