I've got a new build for everyone to try! I'm still in the prototype stage so there's no new art (that's coming, trust me), but here's what's new:

• Now available on MacOSX! 
• New modes! "Challenge Mode" is the mode that's been there since the start, where as you level up the blocks will fall faster. "Chill Mode" picks a medium-ish time and never changes it -- you can change it manually right now with the small + and - buttons in the lower right. I'd love to know what speed you find works well for you in this mode, because eventually I'd like to let people select different speeds and I'd like to get some data. 
• Saved Stats! There's now a Stats page in the main menu that tracks high scores, highest level, best word, and longest word for each mode. 
• A variety of other fixes and changes:
  • I think I fixed the weird "crumbly" blocks problem for lower-end systems. But if you're still getting it, please let me know!
  • HUD tweaks (power-ups are now at lower center)
  • New starting mechanic: the block falling timer doesn’t start until you click your first tile so that you get a moment to assess things before the blocks fall. 
  • Capped the highest level in Challenge Mode at some “fast and challenging but not impossible” level (I hope!)
  • Fixed: if you click Swap while a valid word is selected, the word is deselected
  • Right-click now deselects in the general sense — it will deselect all tiles, or deselect the power ups if you have them selected.
  • Fixed: small image bug with the swap power-ups
  • Fixed: can no longer make a valid word, then deselect some blocks and still show some letters as incorrectly valid to submit

Here are some things that are on my To Do list for future releases, some of which are requests by players:

• Better VFX for showing the path of the letters you selected
• Changing up the music for tile bonuses
• A new game mode that I'm excited to try out
• More power-up options
• Of course "real" art -- background scenes, UI art, and more

I've got a bug reporting form here if you find anything!