No clearly not.
example:
I'm browsing the Internet using my wifi connection at home. Suddenly the wifi drops and the phone starts using the 3g connection. I have to go into settings and reconnect to the wireless router. Sometimes this doesn't work so I have to turn the phone off and on again.
This happens all the time. I'd much rather use the wifi connection as its faster and doesn't use up any of my data allowance on my plan.
Hi your wifi problems are more to do with your router than your phone, what router do you have and whats the settings for the wifi?
i.e is it set to b/g or just b or just g what encryption are you using as this can affect thinks as well.
Example I have 2 routers at home I have a Netgear DG854 and a BT home hub V2, now if I connect to my netgear that only has B/G wifi I will lose the signal often when in any room of my house other than the one the router is placed, now this router is using wep as when using anything stronger my phone would lose connection quicker.
Then there's my homehub that uses B/G/N and with this one I have a full signal in every room of my house and most of my 40ft garden, and this one uses WPA/WPA2, the main reason for the better signal is that N router have to high gain antennas as opposed to 1 normal antenna also its well documented that although a lot of devices use B/G connecting them to N routers helps the signal and dose provide greater connection distance potential, I'm not going in to all the techs as I could quote tons of sites and documentation on why and how it works!!
Bottom line is I get much better performance from my N rated router with the phone than my B/G one, and as I said settings also mack the difference.
As for you other problems I to found the ear peace to quite but trust me after a while you get used to it and as someone said earlier placing it just right on your ear dose help (not much but you can notice a difference)
As for the apps I do find that a lot of Asia porn is pushed on to the market place and takes up a lot of categories (this is something google need to address) but have a look at
www.appbrain.com I found this site very useful in finding apps.
You do have a great phone my partner and me love ares although I do find it stressful at times, but remember one key thing ( I tell my self this all the time) "This is Sony's FIRST android phone and they jump in the deep end with out armbands" I have had SE phones for years and have found there first phones in a new range are always great phones but have more problems than your want from a phone